68269777905 has 16 divisors (see below), whose sum is σ = 124836165504. Its totient is φ = 31209041280.

The previous prime is 68269777799. The next prime is 68269777937. The reversal of 68269777905 is 50977796286.

It is not a de Polignac number, because 68269777905 - 2⁸ = 68269777649 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 325094076 + ... + 325094285.

It is an arithmetic number, because the mean of its divisors is an integer number (7802260344).

Almost surely, 2^68269777905 is an apocalyptic number.

It is an amenable number.

68269777905 is a deficient number, since it is larger than the sum of its proper divisors (56566387599).

68269777905 is a wasteful number, since it uses less digits than its factorization.

68269777905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650188376.

The product of its (nonzero) digits is 80015040, while the sum is 66.

The spelling of 68269777905 in words is "sixty-eight billion, two hundred sixty-nine million, seven hundred seventy-seven thousand, nine hundred five".