68125817 has 16 divisors (see below), whose sum is σ = 74898432. Its totient is φ = 61685760.

The previous prime is 68125807. The next prime is 68125861. The reversal of 68125817 is 71852186.

It is a cyclic number.

It is not a de Polignac number, because 68125817 - 2¹² = 68121721 is a prime.

It is a super-2 number, since 2×68125817² = 9282253883834978, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68125807) 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, 135188 + ... + 135690.

It is an arithmetic number, because the mean of its divisors is an integer number (4681152).

Almost surely, 2^68125817 is an apocalyptic number.

It is an amenable number.

68125817 is a deficient number, since it is larger than the sum of its proper divisors (6772615).

68125817 is a wasteful number, since it uses less digits than its factorization.

68125817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 808.

The product of its digits is 26880, while the sum is 38.

The square root of 68125817 is about 8253.8365018941. The cubic root of 68125817 is about 408.4170911713.

The spelling of 68125817 in words is "sixty-eight million, one hundred twenty-five thousand, eight hundred seventeen".