8249520279 has 32 divisors (see below), whose sum is σ = 14768377344. Its totient is φ = 3955812480.

The previous prime is 8249520241. The next prime is 8249520299. The reversal of 8249520279 is 9720259428.

It is not a de Polignac number, because 8249520279 - 2⁸ = 8249520023 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8249520299) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1370544 + ... + 1376549.

It is an arithmetic number, because the mean of its divisors is an integer number (461511792).

Almost surely, 2^8249520279 is an apocalyptic number.

8249520279 is a deficient number, since it is larger than the sum of its proper divisors (6518857065).

8249520279 is a wasteful number, since it uses less digits than its factorization.

8249520279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2747127.

The product of its (nonzero) digits is 725760, while the sum is 48.

The square root of 8249520279 is about 90826.8698073428. The cubic root of 8249520279 is about 2020.5808445478.

The spelling of 8249520279 in words is "eight billion, two hundred forty-nine million, five hundred twenty thousand, two hundred seventy-nine".