68288407142399 has 16 divisors (see below), whose sum is σ = 70179666001920. Its totient is φ = 66416171727360.

The previous prime is 68288407142387. The next prime is 68288407142453. The reversal of 68288407142399 is 99324170488286.

It is a Cunningham number, because it is equal to 8263680²-1.

It is a cyclic number.

It is not a de Polignac number, because 68288407142399 - 2²⁸ = 68288138706943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68288407142359) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4131842 + ... + 12395520.

It is an arithmetic number, because the mean of its divisors is an integer number (4386229125120).

Almost surely, 2^{68288407142399} is an apocalyptic number.

68288407142399 is a deficient number, since it is larger than the sum of its proper divisors (1891258859521).

68288407142399 is a wasteful number, since it uses less digits than its factorization.

68288407142399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8264830.

The product of its (nonzero) digits is 334430208, while the sum is 71.

The spelling of 68288407142399 in words is "sixty-eight trillion, two hundred eighty-eight billion, four hundred seven million, one hundred forty-two thousand, three hundred ninety-nine".