68915658 has 96 divisors (see below), whose sum is σ = 169905600. Its totient is φ = 18552576.

The previous prime is 68915617. The next prime is 68915669. The reversal of 68915658 is 85651986.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 502966 + ... + 503102.

It is an arithmetic number, because the mean of its divisors is an integer number (1769850).

Almost surely, 2^68915658 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68915658, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84952800).

68915658 is an abundant number, since it is smaller than the sum of its proper divisors (100989942).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68915658 is a wasteful number, since it uses less digits than its factorization.

68915658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244 (or 237 counting only the distinct ones).

The product of its digits is 518400, while the sum is 48.

The square root of 68915658 is about 8301.5455187573. The cubic root of 68915658 is about 409.9894068253.

The spelling of 68915658 in words is "sixty-eight million, nine hundred fifteen thousand, six hundred fifty-eight".