68413279 has 12 divisors (see below), whose sum is σ = 75765312. Its totient is φ = 61724960.

The previous prime is 68413229. The next prime is 68413307. The reversal of 68413279 is 97231486.

It is not a de Polignac number, because 68413279 - 2¹⁹ = 67888991 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 (68413229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14514 + ... + 18640.

It is an arithmetic number, because the mean of its divisors is an integer number (6313776).

Almost surely, 2^68413279 is an apocalyptic number.

68413279 is a deficient number, since it is larger than the sum of its proper divisors (7352033).

68413279 is a wasteful number, since it uses less digits than its factorization.

68413279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4286 (or 4275 counting only the distinct ones).

The product of its digits is 72576, while the sum is 40.

The square root of 68413279 is about 8271.2320122216. The cubic root of 68413279 is about 408.9907339440.

The spelling of 68413279 in words is "sixty-eight million, four hundred thirteen thousand, two hundred seventy-nine".