679069299854 has 48 divisors (see below), whose sum is σ = 1184137261440. Its totient is φ = 291035883600.

The previous prime is 679069299787. The next prime is 679069299863. The reversal of 679069299854 is 458992960976.

It is a super-2 number, since 2×679069299854² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 620207 + ... + 1320149.

It is an arithmetic number, because the mean of its divisors is an integer number (24669526280).

Almost surely, 2^679069299854 is an apocalyptic number.

679069299854 is a deficient number, since it is larger than the sum of its proper divisors (505067961586).

679069299854 is a wasteful number, since it uses less digits than its factorization.

679069299854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700197 (or 700186 counting only the distinct ones).

The product of its (nonzero) digits is 529079040, while the sum is 74.

The spelling of 679069299854 in words is "six hundred seventy-nine billion, sixty-nine million, two hundred ninety-nine thousand, eight hundred fifty-four".