679021091180 has 24 divisors (see below), whose sum is σ = 1432225993968. Its totient is φ = 270411921728.

The previous prime is 679021091179. The next prime is 679021091209. The reversal of 679021091180 is 81190120976.

It is a super-2 number, since 2×679021091180² (a number of 24 digits) contains 22 as substring.

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, 74777519 + ... + 74786598.

It is an arithmetic number, because the mean of its divisors is an integer number (59676083082).

Almost surely, 2^679021091180 is an apocalyptic number.

It is an amenable number.

679021091180 is an abundant number, since it is smaller than the sum of its proper divisors (753204902788).

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

679021091180 is a wasteful number, since it uses less digits than its factorization.

679021091180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149564353 (or 149564351 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 44.

The spelling of 679021091180 in words is "six hundred seventy-nine billion, twenty-one million, ninety-one thousand, one hundred eighty".