40564631115 has 40 divisors (see below), whose sum is σ = 76543022160. Its totient is φ = 20495809728.

The previous prime is 40564631113. The next prime is 40564631123. The reversal of 40564631115 is 51113646504.

40564631115 is a `hidden beast` number, since 4 + 0 + 5 + 6 + 4 + 631 + 1 + 15 = 666.

It is not a de Polignac number, because 40564631115 - 2¹ = 40564631113 is a prime.

It is a super-2 number, since 2×40564631115² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40564631115.

It is not an unprimeable number, because it can be changed into a prime (40564631113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2628084 + ... + 2643473.

It is an arithmetic number, because the mean of its divisors is an integer number (1913575554).

Almost surely, 2^40564631115 is an apocalyptic number.

40564631115 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

40564631115 is a deficient number, since it is larger than the sum of its proper divisors (35978391045).

40564631115 is a wasteful number, since it uses less digits than its factorization.

40564631115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5271593 (or 5271584 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The spelling of 40564631115 in words is "forty billion, five hundred sixty-four million, six hundred thirty-one thousand, one hundred fifteen".