681267627885 has 32 divisors (see below), whose sum is σ = 1174006931328. Its totient is φ = 335356035840.

The previous prime is 681267627871. The next prime is 681267627949. The reversal of 681267627885 is 588726762186.

It is not a de Polignac number, because 681267627885 - 2⁵ = 681267627853 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1608654 + ... + 1987536.

It is an arithmetic number, because the mean of its divisors is an integer number (36687716604).

Almost surely, 2^681267627885 is an apocalyptic number.

681267627885 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

681267627885 is a deficient number, since it is larger than the sum of its proper divisors (492739303443).

681267627885 is a wasteful number, since it uses less digits than its factorization.

681267627885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388125.

The product of its digits is 108380160, while the sum is 66.

The spelling of 681267627885 in words is "six hundred eighty-one billion, two hundred sixty-seven million, six hundred twenty-seven thousand, eight hundred eighty-five".