68331169499 has 8 divisors (see below), whose sum is σ = 71318886912. Its totient is φ = 65344851880.

The previous prime is 68331169481. The next prime is 68331169507. The reversal of 68331169499 is 99496113386.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68331169499 - 2¹² = 68331165403 is a prime.

It is a super-2 number, since 2×68331169499² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68331169429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 249569 + ... + 446034.

It is an arithmetic number, because the mean of its divisors is an integer number (8914860864).

Almost surely, 2^68331169499 is an apocalyptic number.

68331169499 is a deficient number, since it is larger than the sum of its proper divisors (2987717413).

68331169499 is a wasteful number, since it uses less digits than its factorization.

68331169499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 699897.

The product of its digits is 7558272, while the sum is 59.

The spelling of 68331169499 in words is "sixty-eight billion, three hundred thirty-one million, one hundred sixty-nine thousand, four hundred ninety-nine".