1056644344428 has 24 divisors (see below), whose sum is σ = 2465946027888. Its totient is φ = 352151558976.

The previous prime is 1056644344411. The next prime is 1056644344429. The reversal of 1056644344428 is 8244434466501.

It is a super-2 number, since 2×1056644344428² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1056644344429) 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 7 ways as a sum of consecutive naturals, for example, 7833151 + ... + 7966902.

It is an arithmetic number, because the mean of its divisors is an integer number (102747751162).

Almost surely, 2^{1056644344428} is an apocalyptic number.

It is an amenable number.

1056644344428 is an abundant number, since it is smaller than the sum of its proper divisors (1409301683460).

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

1056644344428 is a wasteful number, since it uses less digits than its factorization.

1056644344428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15805633 (or 15805631 counting only the distinct ones).

The product of its (nonzero) digits is 8847360, while the sum is 51.

The spelling of 1056644344428 in words is "one trillion, fifty-six billion, six hundred forty-four million, three hundred forty-four thousand, four hundred twenty-eight".