679209469858502 has 16 divisors (see below), whose sum is σ = 1169930187316800. Its totient is φ = 292482546828840.

The previous prime is 679209469858471. The next prime is 679209469858657. The reversal of 679209469858502 is 205858964902976.

It is a happy number.

It is a super-2 number, since 2×679209469858502² (a number of 30 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 7 ways as a sum of consecutive naturals, for example, 812451518552 + ... + 812451519387.

It is an arithmetic number, because the mean of its divisors is an integer number (73120636707300).

Almost surely, 2^{679209469858502} is an apocalyptic number.

679209469858502 is a deficient number, since it is larger than the sum of its proper divisors (490720717458298).

679209469858502 is a wasteful number, since it uses less digits than its factorization.

679209469858502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1624903037971.

The product of its (nonzero) digits is 4702924800, while the sum is 80.

The spelling of 679209469858502 in words is "six hundred seventy-nine trillion, two hundred nine billion, four hundred sixty-nine million, eight hundred fifty-eight thousand, five hundred two".