79487306519 has 4 divisors (see below), whose sum is σ = 79488239880. Its totient is φ = 79486373160.

The previous prime is 79487306443. The next prime is 79487306543. The reversal of 79487306519 is 91560378497.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 79487306519 - 2²⁰ = 79486257943 is a prime.

It is a super-2 number, since 2×79487306519² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79487305519) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 324497 + ... + 514074.

It is an arithmetic number, because the mean of its divisors is an integer number (19872059970).

Almost surely, 2^79487306519 is an apocalyptic number.

79487306519 is a deficient number, since it is larger than the sum of its proper divisors (933361).

79487306519 is an equidigital number, since it uses as much as digits as its factorization.

79487306519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 933360.

The product of its (nonzero) digits is 11430720, while the sum is 59.

The spelling of 79487306519 in words is "seventy-nine billion, four hundred eighty-seven million, three hundred six thousand, five hundred nineteen".