40564636364 has 24 divisors (see below), whose sum is σ = 81444965280. Its totient is φ = 17317195776.

The previous prime is 40564636361. The next prime is 40564636369. The reversal of 40564636364 is 46363646504.

It is a super-2 number, since 2×40564636364² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40564636361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2811359 + ... + 2825750.

It is an arithmetic number, because the mean of its divisors is an integer number (3393540220).

Almost surely, 2^40564636364 is an apocalyptic number.

It is an amenable number.

40564636364 is an abundant number, since it is smaller than the sum of its proper divisors (40880328916).

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

40564636364 is a wasteful number, since it uses less digits than its factorization.

40564636364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5637377 (or 5637375 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 47.

The spelling of 40564636364 in words is "forty billion, five hundred sixty-four million, six hundred thirty-six thousand, three hundred sixty-four".