2872900921857 has 24 divisors (see below), whose sum is σ = 3950872343712. Its totient is φ = 1856870870400.

The previous prime is 2872900921843. The next prime is 2872900921867. The reversal of 2872900921857 is 7581290092782.

It is not a de Polignac number, because 2872900921857 - 2³¹ = 2870753438209 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2872900921857.

It is not an unprimeable number, because it can be changed into a prime (2872900921867) 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 23 ways as a sum of consecutive naturals, for example, 90619 + ... + 2398752.

It is an arithmetic number, because the mean of its divisors is an integer number (164619680988).

Almost surely, 2^{2872900921857} is an apocalyptic number.

It is an amenable number.

2872900921857 is a deficient number, since it is larger than the sum of its proper divisors (1077971421855).

2872900921857 is a wasteful number, since it uses less digits than its factorization.

2872900921857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2489729 (or 2489692 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 60.

The spelling of 2872900921857 in words is "two trillion, eight hundred seventy-two billion, nine hundred million, nine hundred twenty-one thousand, eight hundred fifty-seven".