68691575 has 12 divisors (see below), whose sum is σ = 88115640. Its totient is φ = 53057760.

The previous prime is 68691569. The next prime is 68691583. The reversal of 68691575 is 57519686.

It is not a de Polignac number, because 68691575 - 2¹⁶ = 68626039 is a prime.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46649 + ... + 48098.

It is an arithmetic number, because the mean of its divisors is an integer number (7342970).

Almost surely, 2^68691575 is an apocalyptic number.

68691575 is a deficient number, since it is larger than the sum of its proper divisors (19424065).

68691575 is a wasteful number, since it uses less digits than its factorization.

68691575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94786 (or 94781 counting only the distinct ones).

The product of its digits is 453600, while the sum is 47.

The square root of 68691575 is about 8288.0380669975. The cubic root of 68691575 is about 409.5445567268.

The spelling of 68691575 in words is "sixty-eight million, six hundred ninety-one thousand, five hundred seventy-five".