679994499976 has 24 divisors (see below), whose sum is σ = 1401434947710. Its totient is φ = 309088408640.

The previous prime is 679994499949. The next prime is 679994499997.

679994499976 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in only one way, i.e., 660985260100 + 19009239876 = 813010^2 + 137874^2 .

It is a super-2 number, since 2×679994499976² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (88).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 351235861 + ... + 351237796.

Almost surely, 2^679994499976 is an apocalyptic number.

It is an amenable number.

679994499976 is an abundant number, since it is smaller than the sum of its proper divisors (721440447734).

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

679994499976 is a wasteful number, since it uses less digits than its factorization.

679994499976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702473685 (or 702473670 counting only the distinct ones).

The product of its digits is 14999390784, while the sum is 88.

The spelling of 679994499976 in words is "six hundred seventy-nine billion, nine hundred ninety-four million, four hundred ninety-nine thousand, nine hundred seventy-six".