67708705136 has 40 divisors (see below), whose sum is σ = 140334455520. Its totient is φ = 31534424064.

The previous prime is 67708705093. The next prime is 67708705147. The reversal of 67708705136 is 63150780776.

67708705136 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1256756 + ... + 1309523.

It is an arithmetic number, because the mean of its divisors is an integer number (3508361388).

Almost surely, 2^67708705136 is an apocalyptic number.

It is an amenable number.

67708705136 is an abundant number, since it is smaller than the sum of its proper divisors (72625750384).

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

67708705136 is a wasteful number, since it uses less digits than its factorization.

67708705136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2566401 (or 2566395 counting only the distinct ones).

The product of its (nonzero) digits is 1481760, while the sum is 50.

The spelling of 67708705136 in words is "sixty-seven billion, seven hundred eight million, seven hundred five thousand, one hundred thirty-six".