168814481784 has 64 divisors (see below), whose sum is σ = 454572518400. Its totient is φ = 51934690176.

The previous prime is 168814481669. The next prime is 168814481791. The reversal of 168814481784 is 487184418861.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2101837 + ... + 2180675.

It is an arithmetic number, because the mean of its divisors is an integer number (7102695600).

Almost surely, 2^168814481784 is an apocalyptic number.

It is an amenable number.

168814481784 is an abundant number, since it is smaller than the sum of its proper divisors (285758036616).

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

168814481784 is a wasteful number, since it uses less digits than its factorization.

168814481784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85724 (or 85720 counting only the distinct ones).

The product of its digits is 11010048, while the sum is 60.

The spelling of 168814481784 in words is "one hundred sixty-eight billion, eight hundred fourteen million, four hundred eighty-one thousand, seven hundred eighty-four".