40051811232 has 96 divisors (see below), whose sum is σ = 123689462400. Its totient is φ = 12565269504.

The previous prime is 40051811213. The next prime is 40051811257. The reversal of 40051811232 is 23211815004.

40051811232 is a `hidden beast` number, since 4 + 0 + 0 + 518 + 112 + 32 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×40051811232² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 40051811196 and 40051811205.

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, 1348732 + ... + 1378107.

It is an arithmetic number, because the mean of its divisors is an integer number (1288431900).

Almost surely, 2^40051811232 is an apocalyptic number.

It is an amenable number.

40051811232 is an abundant number, since it is smaller than the sum of its proper divisors (83637651168).

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

40051811232 is a wasteful number, since it uses less digits than its factorization.

40051811232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2726875 (or 2726861 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The spelling of 40051811232 in words is "forty billion, fifty-one million, eight hundred eleven thousand, two hundred thirty-two".