40635726512 has 20 divisors (see below), whose sum is σ = 82875495480. Its totient is φ = 19248501888.

The previous prime is 40635726499. The next prime is 40635726613. The reversal of 40635726512 is 21562753604.

It is a super-2 number, since 2×40635726512² (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 40635726512.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 66834773 + ... + 66835380.

It is an arithmetic number, because the mean of its divisors is an integer number (4143774774).

Almost surely, 2^40635726512 is an apocalyptic number.

It is an amenable number.

40635726512 is an abundant number, since it is smaller than the sum of its proper divisors (42239768968).

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

40635726512 is a wasteful number, since it uses less digits than its factorization.

40635726512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133670180 (or 133670174 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 41.

The spelling of 40635726512 in words is "forty billion, six hundred thirty-five million, seven hundred twenty-six thousand, five hundred twelve".