118277777648 has 40 divisors (see below), whose sum is σ = 242618883600. Its totient is φ = 55702439424.

The previous prime is 118277777623. The next prime is 118277777671. The reversal of 118277777648 is 846777772811.

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, 1071893 + ... + 1177076.

It is an arithmetic number, because the mean of its divisors is an integer number (6065472090).

Almost surely, 2^118277777648 is an apocalyptic number.

It is an amenable number.

118277777648 is an abundant number, since it is smaller than the sum of its proper divisors (124341105952).

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

118277777648 is a wasteful number, since it uses less digits than its factorization.

118277777648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2249169 (or 2249163 counting only the distinct ones).

The product of its digits is 51631104, while the sum is 65.

The spelling of 118277777648 in words is "one hundred eighteen billion, two hundred seventy-seven million, seven hundred seventy-seven thousand, six hundred forty-eight".