68699973960 has 128 divisors (see below), whose sum is σ = 229057545600. Its totient is φ = 18315383040.

The previous prime is 68699973913. The next prime is 68699973971. The reversal of 68699973960 is 6937999686.

68699973960 is a `hidden beast` number, since 68 + 6 + 99 + 97 + 396 + 0 = 666.

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 31 ways as a sum of consecutive naturals, for example, 7913142 + ... + 7921818.

It is an arithmetic number, because the mean of its divisors is an integer number (1789512075).

Almost surely, 2^68699973960 is an apocalyptic number.

68699973960 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68699973960 is an abundant number, since it is smaller than the sum of its proper divisors (160357571640).

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

68699973960 is a wasteful number, since it uses less digits than its factorization.

68699973960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16028 (or 16018 counting only the distinct ones).

The product of its (nonzero) digits is 238085568, while the sum is 72.

The spelling of 68699973960 in words is "sixty-eight billion, six hundred ninety-nine million, nine hundred seventy-three thousand, nine hundred sixty".