40636873746 has 96 divisors (see below), whose sum is σ = 111227100480. Its totient is φ = 10927550592.

The previous prime is 40636873727. The next prime is 40636873757. The reversal of 40636873746 is 64737863604.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 40636873692 and 40636873701.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 406720 + ... + 496683.

It is an arithmetic number, because the mean of its divisors is an integer number (1158615630).

Almost surely, 2^40636873746 is an apocalyptic number.

40636873746 is an abundant number, since it is smaller than the sum of its proper divisors (70590226734).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40636873746 is a wasteful number, since it uses less digits than its factorization.

40636873746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 903445 (or 903432 counting only the distinct ones).

The product of its (nonzero) digits is 12192768, while the sum is 54.

The spelling of 40636873746 in words is "forty billion, six hundred thirty-six million, eight hundred seventy-three thousand, seven hundred forty-six".