68999261916 has 36 divisors (see below), whose sum is σ = 173391005256. Its totient is φ = 21229532640.

The previous prime is 68999261873. The next prime is 68999261939. The reversal of 68999261916 is 61916299986.

It is a congruent number.

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, 3270321 + ... + 3291351.

Almost surely, 2^68999261916 is an apocalyptic number.

It is an amenable number.

68999261916 is an abundant number, since it is smaller than the sum of its proper divisors (104391743340).

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

68999261916 is an equidigital number, since it uses as much as digits as its factorization.

68999261916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42082 (or 21049 counting only the distinct ones).

The product of its digits is 22674816, while the sum is 66.

The spelling of 68999261916 in words is "sixty-eight billion, nine hundred ninety-nine million, two hundred sixty-one thousand, nine hundred sixteen".