210549758434972 has 48 divisors (see below), whose sum is σ = 413057073623040. Its totient is φ = 93064890081600.

The previous prime is 210549758434909. The next prime is 210549758434991. The reversal of 210549758434972 is 279434857945012.

It is a happy number.

It is a Smith number, since the sum of its digits (70) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33898804 + ... + 39626107.

It is an arithmetic number, because the mean of its divisors is an integer number (8605355700480).

Almost surely, 2^{210549758434972} is an apocalyptic number.

210549758434972 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

210549758434972 is a deficient number, since it is larger than the sum of its proper divisors (202507315188068).

210549758434972 is a wasteful number, since it uses less digits than its factorization.

210549758434972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73526722 (or 73526720 counting only the distinct ones).

The product of its (nonzero) digits is 609638400, while the sum is 70.

The spelling of 210549758434972 in words is "two hundred ten trillion, five hundred forty-nine billion, seven hundred fifty-eight million, four hundred thirty-four thousand, nine hundred seventy-two".