68672053863 has 72 divisors (see below), whose sum is σ = 120718503360. Its totient is φ = 37469053440.

The previous prime is 68672053831. The next prime is 68672053907. The reversal of 68672053863 is 36835027686.

68672053863 is a `hidden beast` number, since 6 + 86 + 7 + 20 + 538 + 6 + 3 = 666.

It is not a de Polignac number, because 68672053863 - 2⁵ = 68672053831 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68672053823) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 809403 + ... + 890211.

It is an arithmetic number, because the mean of its divisors is an integer number (1676645880).

Almost surely, 2^68672053863 is an apocalyptic number.

68672053863 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

68672053863 is a deficient number, since it is larger than the sum of its proper divisors (52046449497).

68672053863 is a wasteful number, since it uses less digits than its factorization.

68672053863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80917 (or 80907 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 54.

The spelling of 68672053863 in words is "sixty-eight billion, six hundred seventy-two million, fifty-three thousand, eight hundred sixty-three".