54621510916 has 48 divisors (see below), whose sum is σ = 115018444800. Its totient is φ = 22172181408.

The previous prime is 54621510883. The next prime is 54621510989. The reversal of 54621510916 is 61901512645.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3208515 + ... + 3225493.

It is an arithmetic number, because the mean of its divisors is an integer number (2396217600).

Almost surely, 2^54621510916 is an apocalyptic number.

It is an amenable number.

54621510916 is an abundant number, since it is smaller than the sum of its proper divisors (60396933884).

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

54621510916 is a wasteful number, since it uses less digits than its factorization.

54621510916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23056 (or 23054 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 40.

The spelling of 54621510916 in words is "fifty-four billion, six hundred twenty-one million, five hundred ten thousand, nine hundred sixteen".