68153912877 has 8 divisors (see below), whose sum is σ = 90912478720. Its totient is φ = 45415644480.

The previous prime is 68153912861. The next prime is 68153912881. The reversal of 68153912877 is 77821935186.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 68153912877 - 2⁴ = 68153912861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68153912807) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5066524 + ... + 5079957.

It is an arithmetic number, because the mean of its divisors is an integer number (11364059840).

Almost surely, 2^68153912877 is an apocalyptic number.

It is an amenable number.

68153912877 is a deficient number, since it is larger than the sum of its proper divisors (22758565843).

68153912877 is a wasteful number, since it uses less digits than its factorization.

68153912877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10148723.

The product of its digits is 5080320, while the sum is 57.

The spelling of 68153912877 in words is "sixty-eight billion, one hundred fifty-three million, nine hundred twelve thousand, eight hundred seventy-seven".