210539730057 has 16 divisors (see below), whose sum is σ = 283831165632. Its totient is φ = 138806277120.

The previous prime is 210539730053. The next prime is 210539730091. The reversal of 210539730057 is 750037935012.

It is not a de Polignac number, because 210539730057 - 2² = 210539730053 is a prime.

It is not an unprimeable number, because it can be changed into a prime (210539730053) 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, 103557 + ... + 657117.

It is an arithmetic number, because the mean of its divisors is an integer number (17739447852).

Almost surely, 2^210539730057 is an apocalyptic number.

It is an amenable number.

210539730057 is a deficient number, since it is larger than the sum of its proper divisors (73291435575).

210539730057 is a wasteful number, since it uses less digits than its factorization.

210539730057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554968.

The product of its (nonzero) digits is 198450, while the sum is 42.

The spelling of 210539730057 in words is "two hundred ten billion, five hundred thirty-nine million, seven hundred thirty thousand, fifty-seven".