68670157 has 12 divisors (see below), whose sum is σ = 76126176. Its totient is φ = 61814720.

The previous prime is 68670137. The next prime is 68670163. The reversal of 68670157 is 75107686.

It is not a de Polignac number, because 68670157 - 2⁷ = 68670029 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 (68670137) 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, 1482 + ... + 11812.

It is an arithmetic number, because the mean of its divisors is an integer number (6343848).

Almost surely, 2^68670157 is an apocalyptic number.

It is an amenable number.

68670157 is a deficient number, since it is larger than the sum of its proper divisors (7456019).

68670157 is a wasteful number, since it uses less digits than its factorization.

68670157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10388 (or 10371 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 40.

The square root of 68670157 is about 8286.7458631238. The cubic root of 68670157 is about 409.5019870369.

The spelling of 68670157 in words is "sixty-eight million, six hundred seventy thousand, one hundred fifty-seven".