68180980 has 24 divisors (see below), whose sum is σ = 163634688. Its totient is φ = 23376288.

The previous prime is 68180969. The next prime is 68181007. The reversal of 68180980 is 8908186.

It is a happy number.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 243364 + ... + 243643.

It is an arithmetic number, because the mean of its divisors is an integer number (6818112).

Almost surely, 2^68180980 is an apocalyptic number.

It is an amenable number.

68180980 is an abundant number, since it is smaller than the sum of its proper divisors (95453708).

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

68180980 is a wasteful number, since it uses less digits than its factorization.

68180980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487023 (or 487021 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 40.

The square root of 68180980 is about 8257.1774838621. The cubic root of 68180980 is about 408.5272962538.

The spelling of 68180980 in words is "sixty-eight million, one hundred eighty thousand, nine hundred eighty".