2056474920864 has 648 divisors, whose sum is σ = 7224119729568. Its totient is φ = 510406041600.

The previous prime is 2056474920827. The next prime is 2056474920887. The reversal of 2056474920864 is 4680294746502.

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 107 ways as a sum of consecutive naturals, for example, 229743589 + ... + 229752539.

It is an arithmetic number, because the mean of its divisors is an integer number (11148332916).

Almost surely, 2^{2056474920864} is an apocalyptic number.

2056474920864 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2056474920864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3612059864784).

2056474920864 is an abundant number, since it is smaller than the sum of its proper divisors (5167644808704).

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

2056474920864 is a wasteful number, since it uses less digits than its factorization.

2056474920864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9038 (or 8993 counting only the distinct ones).

The product of its (nonzero) digits is 23224320, while the sum is 57.

The spelling of 2056474920864 in words is "two trillion, fifty-six billion, four hundred seventy-four million, nine hundred twenty thousand, eight hundred sixty-four".