4056531777972 has 18 divisors (see below), whose sum is σ = 10254010883298. Its totient is φ = 1352177259312.

The previous prime is 4056531777931. The next prime is 4056531778027. The reversal of 4056531777972 is 2797771356504.

4056531777972 is a `hidden beast` number, since 4 + 0 + 5 + 6 + 531 + 7 + 7 + 7 + 97 + 2 = 666.

4056531777972 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2874123464976 + 1182408312996 = 1695324^2 + 1087386^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 56340719103 + ... + 56340719174.

Almost surely, 2^{4056531777972} is an apocalyptic number.

It is an amenable number.

4056531777972 is an abundant number, since it is smaller than the sum of its proper divisors (6197479105326).

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

4056531777972 is a wasteful number, since it uses less digits than its factorization.

4056531777972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112681438287 (or 112681438282 counting only the distinct ones).

The product of its (nonzero) digits is 77792400, while the sum is 63.

The spelling of 4056531777972 in words is "four trillion, fifty-six billion, five hundred thirty-one million, seven hundred seventy-seven thousand, nine hundred seventy-two".