7185479664 has 80 divisors (see below), whose sum is σ = 20632143744. Its totient is φ = 2136326400.

The previous prime is 7185479627. The next prime is 7185479671. The reversal of 7185479664 is 4669745817.

It is a super-2 number, since 2×7185479664² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100402 + ... + 156369.

Almost surely, 2^7185479664 is an apocalyptic number.

It is an amenable number.

7185479664 is an abundant number, since it is smaller than the sum of its proper divisors (13446664080).

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

7185479664 is a wasteful number, since it uses less digits than its factorization.

7185479664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256846 (or 256840 counting only the distinct ones).

The product of its digits is 10160640, while the sum is 57.

The square root of 7185479664 is about 84767.2086599529. The cubic root of 7185479664 is about 1929.6798187392.

The spelling of 7185479664 in words is "seven billion, one hundred eighty-five million, four hundred seventy-nine thousand, six hundred sixty-four".