68691522 has 8 divisors (see below), whose sum is σ = 137383056. Its totient is φ = 22897172.

The previous prime is 68691521. The next prime is 68691541. The reversal of 68691522 is 22519686.

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

68691522 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (68691521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5724288 + ... + 5724299.

It is an arithmetic number, because the mean of its divisors is an integer number (17172882).

Almost surely, 2^68691522 is an apocalyptic number.

68691522 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

68691522 is a wasteful number, since it uses less digits than its factorization.

68691522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11448592.

The product of its digits is 51840, while the sum is 39.

The square root of 68691522 is about 8288.0348696178. The cubic root of 68691522 is about 409.5444513967.

The spelling of 68691522 in words is "sixty-eight million, six hundred ninety-one thousand, five hundred twenty-two".