7518479864 has 24 divisors (see below), whose sum is σ = 16112418840. Its totient is φ = 3221927568.

The previous prime is 7518479861. The next prime is 7518479897. The reversal of 7518479864 is 4689748157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7518479861) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 643079 + ... + 654665.

It is an arithmetic number, because the mean of its divisors is an integer number (671350785).

Almost surely, 2^7518479864 is an apocalyptic number.

It is an amenable number.

7518479864 is an abundant number, since it is smaller than the sum of its proper divisors (8593938976).

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

7518479864 is an frugal number, since it uses more digits than its factorization.

7518479864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23187 (or 11596 counting only the distinct ones).

The product of its digits is 13547520, while the sum is 59.

The square root of 7518479864 is about 86709.1682810993. The cubic root of 7518479864 is about 1959.0401957592.

The spelling of 7518479864 in words is "seven billion, five hundred eighteen million, four hundred seventy-nine thousand, eight hundred sixty-four".