40132618464 has 24 divisors (see below), whose sum is σ = 105348123720. Its totient is φ = 13377539456.

The previous prime is 40132618459. The next prime is 40132618469. The reversal of 40132618464 is 46481623104.

It is an interprime number because it is at equal distance from previous prime (40132618459) and next prime (40132618469).

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×40132618464² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40132618469) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209023959 + ... + 209024150.

It is an arithmetic number, because the mean of its divisors is an integer number (4389505155).

Almost surely, 2^40132618464 is an apocalyptic number.

It is an amenable number.

40132618464 is an abundant number, since it is smaller than the sum of its proper divisors (65215505256).

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

40132618464 is a wasteful number, since it uses less digits than its factorization.

40132618464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418048122 (or 418048114 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 39.

The spelling of 40132618464 in words is "forty billion, one hundred thirty-two million, six hundred eighteen thousand, four hundred sixty-four".