68274730080 has 72 divisors (see below), whose sum is σ = 232987521312. Its totient is φ = 18206594304.

The previous prime is 68274730061. The next prime is 68274730157. The reversal of 68274730080 is 8003747286.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×68274730080² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23705064 + ... + 23707943.

It is an arithmetic number, because the mean of its divisors is an integer number (3235937796).

Almost surely, 2^68274730080 is an apocalyptic number.

68274730080 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68274730080 is an abundant number, since it is smaller than the sum of its proper divisors (164712791232).

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

68274730080 is a wasteful number, since it uses less digits than its factorization.

68274730080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47413028 (or 47413017 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 45.

The spelling of 68274730080 in words is "sixty-eight billion, two hundred seventy-four million, seven hundred thirty thousand, eighty".