40256240868 has 60 divisors (see below), whose sum is σ = 106720048512. Its totient is φ = 13229742960.

The previous prime is 40256240867. The next prime is 40256240963. The reversal of 40256240868 is 86804265204.

40256240868 is a `hidden beast` number, since 4 + 0 + 2 + 562 + 4 + 0 + 86 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (40256240863) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 851980 + ... + 897987.

Almost surely, 2^40256240868 is an apocalyptic number.

It is an amenable number.

40256240868 is an abundant number, since it is smaller than the sum of its proper divisors (66463807644).

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

40256240868 is a wasteful number, since it uses less digits than its factorization.

40256240868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1750054 (or 1750043 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 45.

The spelling of 40256240868 in words is "forty billion, two hundred fifty-six million, two hundred forty thousand, eight hundred sixty-eight".