8275720612520 has 32 divisors (see below), whose sum is σ = 18620648604000. Its totient is φ = 3310238960448.

The previous prime is 8275720612507. The next prime is 8275720612529. The reversal of 8275720612520 is 252160275728.

It is not an unprimeable number, because it can be changed into a prime (8275720612529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1242167 + ... + 4253753.

It is an arithmetic number, because the mean of its divisors is an integer number (581895268875).

Almost surely, 2^{8275720612520} is an apocalyptic number.

It is an amenable number.

8275720612520 is an abundant number, since it is smaller than the sum of its proper divisors (10344927991480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8275720612520 is a wasteful number, since it uses less digits than its factorization.

8275720612520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3080297 (or 3080293 counting only the distinct ones).

The product of its (nonzero) digits is 940800, while the sum is 47.

The spelling of 8275720612520 in words is "eight trillion, two hundred seventy-five billion, seven hundred twenty million, six hundred twelve thousand, five hundred twenty".