685802127755 has 8 divisors (see below), whose sum is σ = 830952481632. Its totient is φ = 543315083328.

The previous prime is 685802127733. The next prime is 685802127809. The reversal of 685802127755 is 557721208586.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 685802127755 - 2¹⁰ = 685802126731 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 685802127755.

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, 665826794 + ... + 665827823.

It is an arithmetic number, because the mean of its divisors is an integer number (103869060204).

Almost surely, 2^685802127755 is an apocalyptic number.

685802127755 is a deficient number, since it is larger than the sum of its proper divisors (145150353877).

685802127755 is a wasteful number, since it uses less digits than its factorization.

685802127755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1331654725.

The product of its (nonzero) digits is 9408000, while the sum is 56.

The spelling of 685802127755 in words is "six hundred eighty-five billion, eight hundred two million, one hundred twenty-seven thousand, seven hundred fifty-five".