681100237907 has 8 divisors (see below), whose sum is σ = 687783823584. Its totient is φ = 674418017088.

The previous prime is 681100237901. The next prime is 681100237957. The reversal of 681100237907 is 709732001186.

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 681100237907 - 2⁴ = 681100237891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (681100237901) 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, 676553 + ... + 1349045.

It is an arithmetic number, because the mean of its divisors is an integer number (85972977948).

Almost surely, 2^681100237907 is an apocalyptic number.

681100237907 is a deficient number, since it is larger than the sum of its proper divisors (6683585677).

681100237907 is a wasteful number, since it uses less digits than its factorization.

681100237907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 682429.

The product of its (nonzero) digits is 127008, while the sum is 44.

The spelling of 681100237907 in words is "six hundred eighty-one billion, one hundred million, two hundred thirty-seven thousand, nine hundred seven".