685927652437 has 16 divisors (see below), whose sum is σ = 719645702400. Its totient is φ = 653016057408.

The previous prime is 685927652411. The next prime is 685927652447. The reversal of 685927652437 is 734256729586.

It is a cyclic number.

It is not a de Polignac number, because 685927652437 - 2²³ = 685919263829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (685927652447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6761314 + ... + 6862012.

It is an arithmetic number, because the mean of its divisors is an integer number (44977856400).

Almost surely, 2^685927652437 is an apocalyptic number.

It is an amenable number.

685927652437 is a deficient number, since it is larger than the sum of its proper divisors (33718049963).

685927652437 is a wasteful number, since it uses less digits than its factorization.

685927652437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104700.

The product of its digits is 152409600, while the sum is 64.

The spelling of 685927652437 in words is "six hundred eighty-five billion, nine hundred twenty-seven million, six hundred fifty-two thousand, four hundred thirty-seven".