2100570056678 has 16 divisors (see below), whose sum is σ = 3257443899744. Its totient is φ = 1015131398400.

The previous prime is 2100570056671. The next prime is 2100570056693. The reversal of 2100570056678 is 8766500750012.

It is a super-2 number, since 2×2100570056678² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100570056671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93982475 + ... + 94004822.

It is an arithmetic number, because the mean of its divisors is an integer number (203590243734).

Almost surely, 2^{2100570056678} is an apocalyptic number.

2100570056678 is a deficient number, since it is larger than the sum of its proper divisors (1156873843066).

2100570056678 is a wasteful number, since it uses less digits than its factorization.

2100570056678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187987487.

The product of its (nonzero) digits is 705600, while the sum is 47.

The spelling of 2100570056678 in words is "two trillion, one hundred billion, five hundred seventy million, fifty-six thousand, six hundred seventy-eight".