68658542 has 8 divisors (see below), whose sum is σ = 107465616. Its totient is φ = 32836672.

The previous prime is 68658539. The next prime is 68658553. The reversal of 68658542 is 24585686.

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

It is a junction number, because it is equal to n+sod(n) for n = 68658493 and 68658502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 746243 + ... + 746334.

It is an arithmetic number, because the mean of its divisors is an integer number (13433202).

Almost surely, 2^68658542 is an apocalyptic number.

68658542 is a deficient number, since it is larger than the sum of its proper divisors (38807074).

68658542 is a wasteful number, since it uses less digits than its factorization.

68658542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1492602.

The product of its digits is 460800, while the sum is 44.

The square root of 68658542 is about 8286.0450155668. The cubic root of 68658542 is about 409.4788977553.

The spelling of 68658542 in words is "sixty-eight million, six hundred fifty-eight thousand, five hundred forty-two".