681119104 has 32 divisors (see below), whose sum is σ = 1400696640. Its totient is φ = 329571840.

The previous prime is 681119099. The next prime is 681119111. The reversal of 681119104 is 401911186.

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81859 + ... + 89794.

It is an arithmetic number, because the mean of its divisors is an integer number (43771770).

Almost surely, 2^681119104 is an apocalyptic number.

681119104 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

681119104 is an abundant number, since it is smaller than the sum of its proper divisors (719577536).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

681119104 is a wasteful number, since it uses less digits than its factorization.

681119104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171698 (or 171686 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 31.

The square root of 681119104 is about 26098.2586392273. The cubic root of 681119104 is about 879.8480729457.

The spelling of 681119104 in words is "six hundred eighty-one million, one hundred nineteen thousand, one hundred four".