40178726256 has 40 divisors (see below), whose sum is σ = 103947096960. Its totient is φ = 13373288896.

The previous prime is 40178726213. The next prime is 40178726261. The reversal of 40178726256 is 65262787104.

It is a super-2 number, since 2×40178726256² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 579996 + ... + 645563.

It is an arithmetic number, because the mean of its divisors is an integer number (2598677424).

Almost surely, 2^40178726256 is an apocalyptic number.

It is an amenable number.

40178726256 is an abundant number, since it is smaller than the sum of its proper divisors (63768370704).

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

40178726256 is a wasteful number, since it uses less digits than its factorization.

40178726256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1226253 (or 1226247 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 48.

The spelling of 40178726256 in words is "forty billion, one hundred seventy-eight million, seven hundred twenty-six thousand, two hundred fifty-six".