54778699724 has 12 divisors (see below), whose sum is σ = 109557399504. Its totient is φ = 23476585584.

The previous prime is 54778699709. The next prime is 54778699733. The reversal of 54778699724 is 42799687745.

54778699724 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 978191039 + ... + 978191094.

It is an arithmetic number, because the mean of its divisors is an integer number (9129783292).

Almost surely, 2^54778699724 is an apocalyptic number.

It is an amenable number.

54778699724 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

54778699724 is a wasteful number, since it uses less digits than its factorization.

54778699724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1956382144 (or 1956382142 counting only the distinct ones).

The product of its digits is 213373440, while the sum is 68.

The spelling of 54778699724 in words is "fifty-four billion, seven hundred seventy-eight million, six hundred ninety-nine thousand, seven hundred twenty-four".