68551308 has 36 divisors (see below), whose sum is σ = 198037840. Its totient is φ = 19586016.

The previous prime is 68551283. The next prime is 68551309. The reversal of 68551308 is 80315586.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (68551309) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 135763 + ... + 136266.

Almost surely, 2^68551308 is an apocalyptic number.

It is an amenable number.

68551308 is an abundant number, since it is smaller than the sum of its proper divisors (129486532).

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

68551308 is a wasteful number, since it uses less digits than its factorization.

68551308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272046 (or 272041 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 68551308 is about 8279.5717280545. The cubic root of 68551308 is about 409.2656058185.

The spelling of 68551308 in words is "sixty-eight million, five hundred fifty-one thousand, three hundred eight".