68797942306 has 4 divisors (see below), whose sum is σ = 103196913462. Its totient is φ = 34398971152.

The previous prime is 68797942249. The next prime is 68797942319. The reversal of 68797942306 is 60324979786.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 65538560025 + 3259382281 = 256005^2 + 57091^2 .

It is a super-3 number, since 3×68797942306³ (a number of 33 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17199485575 + ... + 17199485578.

Almost surely, 2^68797942306 is an apocalyptic number.

68797942306 is a deficient number, since it is larger than the sum of its proper divisors (34398971156).

68797942306 is a wasteful number, since it uses less digits than its factorization.

68797942306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34398971155.

The product of its (nonzero) digits is 27433728, while the sum is 61.

The spelling of 68797942306 in words is "sixty-eight billion, seven hundred ninety-seven million, nine hundred forty-two thousand, three hundred six".