8259013720 has 16 divisors (see below), whose sum is σ = 18582780960. Its totient is φ = 3303605472.

The previous prime is 8259013703. The next prime is 8259013739. The reversal of 8259013720 is 273109528.

It is a super-2 number, since 2×8259013720² (a number of 21 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 8259013720.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103237632 + ... + 103237711.

It is an arithmetic number, because the mean of its divisors is an integer number (1161423810).

Almost surely, 2^8259013720 is an apocalyptic number.

It is an amenable number.

8259013720 is an abundant number, since it is smaller than the sum of its proper divisors (10323767240).

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

8259013720 is a wasteful number, since it uses less digits than its factorization.

8259013720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206475354 (or 206475350 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 8259013720 is about 90879.1159728130. The cubic root of 8259013720 is about 2021.3556334993.

The spelling of 8259013720 in words is "eight billion, two hundred fifty-nine million, thirteen thousand, seven hundred twenty".