210539316946 has 24 divisors (see below), whose sum is σ = 367390736640. Its totient is φ = 90225950472.

The previous prime is 210539316929. The next prime is 210539316947. The reversal of 210539316946 is 649613935012.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a self number, because there is not a number n which added to its sum of digits gives 210539316946.

It is not an unprimeable number, because it can be changed into a prime (210539316947) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2002731 + ... + 2105233.

It is an arithmetic number, because the mean of its divisors is an integer number (15307947360).

Almost surely, 2^210539316946 is an apocalyptic number.

210539316946 is a deficient number, since it is larger than the sum of its proper divisors (156851419694).

210539316946 is a wasteful number, since it uses less digits than its factorization.

210539316946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123478 (or 123471 counting only the distinct ones).

The product of its (nonzero) digits is 1049760, while the sum is 49.

The spelling of 210539316946 in words is "two hundred ten billion, five hundred thirty-nine million, three hundred sixteen thousand, nine hundred forty-six".