686340074720 has 48 divisors (see below), whose sum is σ = 1625756877360. Its totient is φ = 273811636224.

The previous prime is 686340074677. The next prime is 686340074753. The reversal of 686340074720 is 27470043686.

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, 5598497 + ... + 5719776.

It is an arithmetic number, because the mean of its divisors is an integer number (33869934945).

Almost surely, 2^686340074720 is an apocalyptic number.

It is an amenable number.

686340074720 is an abundant number, since it is smaller than the sum of its proper divisors (939416802640).

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

686340074720 is a wasteful number, since it uses less digits than its factorization.

686340074720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11318667 (or 11318659 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 47.

The spelling of 686340074720 in words is "six hundred eighty-six billion, three hundred forty million, seventy-four thousand, seven hundred twenty".