72521312705110 has 16 divisors (see below), whose sum is σ = 130549717200096. Its totient is φ = 29006001897408.

The previous prime is 72521312705099. The next prime is 72521312705111. The reversal of 72521312705110 is 1150721312527.

It is a super-2 number, since 2×72521312705110² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 72521312705110.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72521312705111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 315277362 + ... + 315507301.

It is an arithmetic number, because the mean of its divisors is an integer number (8159357325006).

Almost surely, 2^{72521312705110} is an apocalyptic number.

72521312705110 is a deficient number, since it is larger than the sum of its proper divisors (58028404494986).

72521312705110 is a wasteful number, since it uses less digits than its factorization.

72521312705110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630796167.

The product of its (nonzero) digits is 29400, while the sum is 37.

The spelling of 72521312705110 in words is "seventy-two trillion, five hundred twenty-one billion, three hundred twelve million, seven hundred five thousand, one hundred ten".