68679472259 has 4 divisors (see below), whose sum is σ = 68722371720. Its totient is φ = 68636572800.

The previous prime is 68679472193. The next prime is 68679472313. The reversal of 68679472259 is 95227497686.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95227497686 = 2 ⋅47613748843.

It is a cyclic number.

It is not a de Polignac number, because 68679472259 - 2⁸ = 68679472003 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68679472195 and 68679472204.

It is not an unprimeable number, because it can be changed into a prime (68679477259) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21447329 + ... + 21450530.

It is an arithmetic number, because the mean of its divisors is an integer number (17180592930).

Almost surely, 2^68679472259 is an apocalyptic number.

68679472259 is a deficient number, since it is larger than the sum of its proper divisors (42899461).

68679472259 is a wasteful number, since it uses less digits than its factorization.

68679472259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42899460.

The product of its digits is 91445760, while the sum is 65.

The spelling of 68679472259 in words is "sixty-eight billion, six hundred seventy-nine million, four hundred seventy-two thousand, two hundred fifty-nine".