2864021402856 has 64 divisors (see below), whose sum is σ = 7172996702400. Its totient is φ = 952948643328.

The previous prime is 2864021402843. The next prime is 2864021402863. The reversal of 2864021402856 is 6582041204682.

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 15 ways as a sum of consecutive naturals, for example, 93235756 + ... + 93266468.

It is an arithmetic number, because the mean of its divisors is an integer number (112078073475).

Almost surely, 2^{2864021402856} is an apocalyptic number.

It is an amenable number.

2864021402856 is an abundant number, since it is smaller than the sum of its proper divisors (4308975299544).

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

2864021402856 is a wasteful number, since it uses less digits than its factorization.

2864021402856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37618 (or 37614 counting only the distinct ones).

The product of its (nonzero) digits is 1474560, while the sum is 48.

The spelling of 2864021402856 in words is "two trillion, eight hundred sixty-four billion, twenty-one million, four hundred two thousand, eight hundred fifty-six".