68736522 has 16 divisors (see below), whose sum is σ = 137554560. Its totient is φ = 22898592.

The previous prime is 68736511. The next prime is 68736523. The reversal of 68736522 is 22563786.

It is not an unprimeable number, because it can be changed into a prime (68736523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16878 + ... + 20550.

It is an arithmetic number, because the mean of its divisors is an integer number (8597160).

Almost surely, 2^68736522 is an apocalyptic number.

68736522 is an abundant number, since it is smaller than the sum of its proper divisors (68818038).

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

68736522 is a wasteful number, since it uses less digits than its factorization.

68736522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6797.

The product of its digits is 120960, while the sum is 39.

The square root of 68736522 is about 8290.7491820703. The cubic root of 68736522 is about 409.6338630972.

The spelling of 68736522 in words is "sixty-eight million, seven hundred thirty-six thousand, five hundred twenty-two".