68810080 has 48 divisors (see below), whose sum is σ = 167819904. Its totient is φ = 26634240.

The previous prime is 68810057. The next prime is 68810087. The reversal of 68810080 is 8001886.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68810087) 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, 1977 + ... + 11896.

It is an arithmetic number, because the mean of its divisors is an integer number (3496248).

Almost surely, 2^68810080 is an apocalyptic number.

It is an amenable number.

68810080 is an abundant number, since it is smaller than the sum of its proper divisors (99009824).

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

68810080 is a wasteful number, since it uses less digits than its factorization.

68810080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13919 (or 13911 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 31.

The square root of 68810080 is about 8295.1841450326. The cubic root of 68810080 is about 409.7799334575.

The spelling of 68810080 in words is "sixty-eight million, eight hundred ten thousand, eighty".