2157307295073 has 16 divisors (see below), whose sum is σ = 3430252594176. Its totient is φ = 1179149328720.

The previous prime is 2157307294997. The next prime is 2157307295093. The reversal of 2157307295073 is 3705927037512.

It is not a de Polignac number, because 2157307295073 - 2²¹ = 2157305197921 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2157307295093) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2233236883 + ... + 2233237848.

It is an arithmetic number, because the mean of its divisors is an integer number (214390787136).

Almost surely, 2^{2157307295073} is an apocalyptic number.

2157307295073 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2157307295073 is a deficient number, since it is larger than the sum of its proper divisors (1272945299103).

2157307295073 is a wasteful number, since it uses less digits than its factorization.

2157307295073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4466474764.

The product of its (nonzero) digits is 2778300, while the sum is 51.

The spelling of 2157307295073 in words is "two trillion, one hundred fifty-seven billion, three hundred seven million, two hundred ninety-five thousand, seventy-three".