68413515 has 8 divisors (see below), whose sum is σ = 109461648. Its totient is φ = 36487200.

The previous prime is 68413507. The next prime is 68413517. The reversal of 68413515 is 51531486.

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

It is not a de Polignac number, because 68413515 - 2³ = 68413507 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (68413517) 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, 2280436 + ... + 2280465.

It is an arithmetic number, because the mean of its divisors is an integer number (13682706).

Almost surely, 2^68413515 is an apocalyptic number.

68413515 is a deficient number, since it is larger than the sum of its proper divisors (41048133).

68413515 is a wasteful number, since it uses less digits than its factorization.

68413515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4560909.

The product of its digits is 14400, while the sum is 33.

The square root of 68413515 is about 8271.2462785242. The cubic root of 68413515 is about 408.9912042313.

The spelling of 68413515 in words is "sixty-eight million, four hundred thirteen thousand, five hundred fifteen".