681260878699 has 8 divisors (see below), whose sum is σ = 720720320000. Its totient is φ = 642161797992.

The previous prime is 681260878657. The next prime is 681260878703. The reversal of 681260878699 is 996878062186.

681260878699 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 681260878699 - 2²⁷ = 681126660971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (681260878099) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90086259 + ... + 90093820.

It is an arithmetic number, because the mean of its divisors is an integer number (90090040000).

Almost surely, 2^681260878699 is an apocalyptic number.

681260878699 is a deficient number, since it is larger than the sum of its proper divisors (39459441301).

681260878699 is a wasteful number, since it uses less digits than its factorization.

681260878699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180180297.

The product of its (nonzero) digits is 125411328, while the sum is 70.

The spelling of 681260878699 in words is "six hundred eighty-one billion, two hundred sixty million, eight hundred seventy-eight thousand, six hundred ninety-nine".