40700637765 has 12 divisors (see below), whose sum is σ = 70547772204. Its totient is φ = 21707006784.

The previous prime is 40700637763. The next prime is 40700637787. The reversal of 40700637765 is 56773600704.

40700637765 is a `hidden beast` number, since 4 + 0 + 7 + 0 + 0 + 637 + 7 + 6 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 25762176036 + 14938461729 = 160506^2 + 122223^2 .

It is not a de Polignac number, because 40700637765 - 2¹ = 40700637763 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 904458617 = 40700637765 / (4 + 0 + 7 + 0 + 0 + 6 + 3 + 7 + 7 + 6 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 40700637765.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40700637763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 452229264 + ... + 452229353.

It is an arithmetic number, because the mean of its divisors is an integer number (5878981017).

Almost surely, 2^40700637765 is an apocalyptic number.

40700637765 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40700637765 is a deficient number, since it is larger than the sum of its proper divisors (29847134439).

40700637765 is a wasteful number, since it uses less digits than its factorization.

40700637765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 904458628 (or 904458625 counting only the distinct ones).

The product of its (nonzero) digits is 740880, while the sum is 45.

The spelling of 40700637765 in words is "forty billion, seven hundred million, six hundred thirty-seven thousand, seven hundred sixty-five".