54816171518 has 4 divisors (see below), whose sum is σ = 82224257280. Its totient is φ = 27408085758.

The previous prime is 54816171499. The next prime is 54816171523. The reversal of 54816171518 is 81517161845.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13704042878 + ... + 13704042881.

It is an arithmetic number, because the mean of its divisors is an integer number (20556064320).

Almost surely, 2^54816171518 is an apocalyptic number.

54816171518 is a deficient number, since it is larger than the sum of its proper divisors (27408085762).

54816171518 is a wasteful number, since it uses less digits than its factorization.

54816171518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27408085761.

The product of its digits is 268800, while the sum is 47.

The spelling of 54816171518 in words is "fifty-four billion, eight hundred sixteen million, one hundred seventy-one thousand, five hundred eighteen".