1056823809372 has 36 divisors (see below), whose sum is σ = 2671729220160. Its totient is φ = 352233265152.

The previous prime is 1056823809337. The next prime is 1056823809389. The reversal of 1056823809372 is 2739083286501.

1056823809372 is a `hidden beast` number, since 1 + 0 + 568 + 2 + 3 + 8 + 0 + 9 + 3 + 72 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×1056823809372² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1410597 + ... + 2025692.

It is an arithmetic number, because the mean of its divisors is an integer number (74214700560).

Almost surely, 2^{1056823809372} is an apocalyptic number.

1056823809372 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1056823809372 is an abundant number, since it is smaller than the sum of its proper divisors (1614905410788).

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

1056823809372 is a wasteful number, since it uses less digits than its factorization.

1056823809372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3444842 (or 3444837 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 54.

The spelling of 1056823809372 in words is "one trillion, fifty-six billion, eight hundred twenty-three million, eight hundred nine thousand, three hundred seventy-two".