68985386424720 has 120 divisors (see below), whose sum is σ = 231678085477176. Its totient is φ = 18395931316224.

The previous prime is 68985386424709. The next prime is 68985386424733. The reversal of 68985386424720 is 2742468358986.

68985386424720 is a `hidden beast` number, since 6 + 8 + 9 + 8 + 53 + 86 + 424 + 72 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 35192278206864 + 33793108217856 = 5932308^2 + 5813184^2 .

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 89206762 + ... + 89976758.

Almost surely, 2^{68985386424720} is an apocalyptic number.

68985386424720 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68985386424720 is an abundant number, since it is smaller than the sum of its proper divisors (162692699052456).

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

68985386424720 is a wasteful number, since it uses less digits than its factorization.

68985386424720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 894449 (or 894440 counting only the distinct ones).

The product of its (nonzero) digits is 1114767360, while the sum is 72.

The spelling of 68985386424720 in words is "sixty-eight trillion, nine hundred eighty-five billion, three hundred eighty-six million, four hundred twenty-four thousand, seven hundred twenty".