189708713768 has 64 divisors (see below), whose sum is σ = 444316492800. Its totient is φ = 74052725760.

The previous prime is 189708713767. The next prime is 189708713773. The reversal of 189708713768 is 867317807981.

It is not an unprimeable number, because it can be changed into a prime (189708713767) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3184583 + ... + 3243606.

It is an arithmetic number, because the mean of its divisors is an integer number (6942445200).

Almost surely, 2^189708713768 is an apocalyptic number.

It is an amenable number.

189708713768 is an abundant number, since it is smaller than the sum of its proper divisors (254607779032).

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

189708713768 is a wasteful number, since it uses less digits than its factorization.

189708713768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6428250 (or 6428246 counting only the distinct ones).

The product of its (nonzero) digits is 28449792, while the sum is 65.

The spelling of 189708713768 in words is "one hundred eighty-nine billion, seven hundred eight million, seven hundred thirteen thousand, seven hundred sixty-eight".