40644082104 has 64 divisors (see below), whose sum is σ = 108423379200. Its totient is φ = 12659141376.

The previous prime is 40644082093. The next prime is 40644082133. The reversal of 40644082104 is 40128044604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 577204 + ... + 643779.

It is an arithmetic number, because the mean of its divisors is an integer number (1694115300).

Almost surely, 2^40644082104 is an apocalyptic number.

It is an amenable number.

40644082104 is an abundant number, since it is smaller than the sum of its proper divisors (67779297096).

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

40644082104 is a wasteful number, since it uses less digits than its factorization.

40644082104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1221084 (or 1221080 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 33.

The spelling of 40644082104 in words is "forty billion, six hundred forty-four million, eighty-two thousand, one hundred four".