210539074738 has 4 divisors (see below), whose sum is σ = 315808612110. Its totient is φ = 105269537368.

The previous prime is 210539074619. The next prime is 210539074847. The reversal of 210539074738 is 837470935012.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 187581673449 + 22957401289 = 433107^2 + 151517^2 .

It is a junction number, because it is equal to n+sod(n) for n = 210539074691 and 210539074700.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52634768683 + ... + 52634768686.

Almost surely, 2^210539074738 is an apocalyptic number.

210539074738 is a deficient number, since it is larger than the sum of its proper divisors (105269537372).

210539074738 is a wasteful number, since it uses less digits than its factorization.

210539074738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105269537371.

The product of its (nonzero) digits is 1270080, while the sum is 49.

The spelling of 210539074738 in words is "two hundred ten billion, five hundred thirty-nine million, seventy-four thousand, seven hundred thirty-eight".