40130344685 has 12 divisors (see below), whose sum is σ = 50341206972. Its totient is φ = 30708435648.

The previous prime is 40130344663. The next prime is 40130344693. The reversal of 40130344685 is 58644303104.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6502487044 + 33627857641 = 80638^2 + 183379^2 .

It is not a de Polignac number, because 40130344685 - 2¹⁶ = 40130279149 is a prime.

It is a super-2 number, since 2×40130344685² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7583432 + ... + 7588721.

It is an arithmetic number, because the mean of its divisors is an integer number (4195100581).

Almost surely, 2^40130344685 is an apocalyptic number.

It is an amenable number.

40130344685 is a deficient number, since it is larger than the sum of its proper divisors (10210862287).

40130344685 is a wasteful number, since it uses less digits than its factorization.

40130344685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15172204 (or 15172181 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 38.

Adding to 40130344685 its reverse (58644303104), we get a palindrome (98774647789).

The spelling of 40130344685 in words is "forty billion, one hundred thirty million, three hundred forty-four thousand, six hundred eighty-five".