68299809756 has 24 divisors (see below), whose sum is σ = 168740706960. Its totient is φ = 21427391232.

The previous prime is 68299809749. The next prime is 68299809763. The reversal of 68299809756 is 65790899286.

It is an interprime number because it is at equal distance from previous prime (68299809749) and next prime (68299809763).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167401291 + ... + 167401698.

It is an arithmetic number, because the mean of its divisors is an integer number (7030862790).

Almost surely, 2^68299809756 is an apocalyptic number.

It is an amenable number.

68299809756 is an abundant number, since it is smaller than the sum of its proper divisors (100440897204).

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

68299809756 is a wasteful number, since it uses less digits than its factorization.

68299809756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334803013 (or 334803011 counting only the distinct ones).

The product of its (nonzero) digits is 117573120, while the sum is 69.

The spelling of 68299809756 in words is "sixty-eight billion, two hundred ninety-nine million, eight hundred nine thousand, seven hundred fifty-six".