68143763253888 has 96 divisors (see below), whose sum is σ = 224103745251360. Its totient is φ = 19469646641664.

The previous prime is 68143763253851. The next prime is 68143763253899. The reversal of 68143763253888 is 88835236734186.

68143763253888 is a `hidden beast` number, since 6 + 8 + 1 + 4 + 3 + 7 + 6 + 3 + 2 + 538 + 88 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

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 11 ways as a sum of consecutive naturals, for example, 4225175670 + ... + 4225191797.

It is an arithmetic number, because the mean of its divisors is an integer number (2334414013035).

Almost surely, 2^{68143763253888} is an apocalyptic number.

It is an amenable number.

68143763253888 is an abundant number, since it is smaller than the sum of its proper divisors (155959981997472).

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

68143763253888 is a wasteful number, since it uses less digits than its factorization.

68143763253888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8450367494 (or 8450367479 counting only the distinct ones).

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

The spelling of 68143763253888 in words is "sixty-eight trillion, one hundred forty-three billion, seven hundred sixty-three million, two hundred fifty-three thousand, eight hundred eighty-eight".