40002546256 has 20 divisors (see below), whose sum is σ = 77512038912. Its totient is φ = 19999439456.

The previous prime is 40002546253. The next prime is 40002546307. The reversal of 40002546256 is 65264520004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40002546251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74865 + ... + 292591.

Almost surely, 2^40002546256 is an apocalyptic number.

It is an amenable number.

40002546256 is a deficient number, since it is larger than the sum of its proper divisors (37509492656).

40002546256 is a wasteful number, since it uses less digits than its factorization.

40002546256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229218 (or 229212 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 34.

The spelling of 40002546256 in words is "forty billion, two million, five hundred forty-six thousand, two hundred fifty-six".