40564636412 has 24 divisors (see below), whose sum is σ = 74111402400. Its totient is φ = 19390827456.

The previous prime is 40564636393. The next prime is 40564636421. The reversal of 40564636412 is 21463646504.

It is a self number, because there is not a number n which added to its sum of digits gives 40564636412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78014 + ... + 295322.

It is an arithmetic number, because the mean of its divisors is an integer number (3087975100).

Almost surely, 2^40564636412 is an apocalyptic number.

It is an amenable number.

40564636412 is a deficient number, since it is larger than the sum of its proper divisors (33546765988).

40564636412 is a wasteful number, since it uses less digits than its factorization.

40564636412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219365 (or 219363 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 41.

The spelling of 40564636412 in words is "forty billion, five hundred sixty-four million, six hundred thirty-six thousand, four hundred twelve".