679506783464 has 8 divisors (see below), whose sum is σ = 1274075219010. Its totient is φ = 339753391728.

The previous prime is 679506783457. The next prime is 679506783469. The reversal of 679506783464 is 464387605976.

679506783464 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 478506994564 + 200999788900 = 691742^2 + 448330^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 679506783464.

It is not an unprimeable number, because it can be changed into a prime (679506783469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42469173959 + ... + 42469173974.

Almost surely, 2^679506783464 is an apocalyptic number.

It is an amenable number.

679506783464 is a deficient number, since it is larger than the sum of its proper divisors (594568435546).

679506783464 is a wasteful number, since it uses less digits than its factorization.

679506783464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84938347939 (or 84938347935 counting only the distinct ones).

The product of its (nonzero) digits is 182891520, while the sum is 65.

The spelling of 679506783464 in words is "six hundred seventy-nine billion, five hundred six million, seven hundred eighty-three thousand, four hundred sixty-four".