40318565904 has 120 divisors (see below), whose sum is σ = 116802940800. Its totient is φ = 12967637760.

The previous prime is 40318565891. The next prime is 40318565923. The reversal of 40318565904 is 40956581304.

40318565904 is a `hidden beast` number, since 4 + 0 + 3 + 1 + 8 + 56 + 590 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 40318565904.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11102169 + ... + 11105799.

It is an arithmetic number, because the mean of its divisors is an integer number (973357840).

Almost surely, 2^40318565904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40318565904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58401470400).

40318565904 is an abundant number, since it is smaller than the sum of its proper divisors (76484374896).

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

40318565904 is a wasteful number, since it uses less digits than its factorization.

40318565904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6333 (or 6324 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 45.

The spelling of 40318565904 in words is "forty billion, three hundred eighteen million, five hundred sixty-five thousand, nine hundred four".