679994499975 has 36 divisors (see below), whose sum is σ = 1307809837224. Its totient is φ = 310854626880.

The previous prime is 679994499949. The next prime is 679994499997. The reversal of 679994499975 is 579994499976.

679994499975 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 679994499975 - 2²² = 679990305671 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 679994499891 and 679994499900.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 92512584 + ... + 92519933.

It is an arithmetic number, because the mean of its divisors is an integer number (36328051034).

Almost surely, 2^679994499975 is an apocalyptic number.

679994499975 is a deficient number, since it is larger than the sum of its proper divisors (627815337249).

679994499975 is a wasteful number, since it uses less digits than its factorization.

679994499975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185032544 (or 185032532 counting only the distinct ones).

The product of its digits is 12499492320, while the sum is 87.

Subtracting from 679994499975 its reverse (579994499976), we obtain a palindrome (99999999999).

The spelling of 679994499975 in words is "six hundred seventy-nine billion, nine hundred ninety-four million, four hundred ninety-nine thousand, nine hundred seventy-five".