54181767771 has 12 divisors (see below), whose sum is σ = 80171396760. Its totient is φ = 35240173920.

The previous prime is 54181767749. The next prime is 54181767779. The reversal of 54181767771 is 17776718145.

It is not a de Polignac number, because 54181767771 - 2⁶ = 54181767707 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54181767779) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 73416661 + ... + 73417398.

It is an arithmetic number, because the mean of its divisors is an integer number (6680949730).

Almost surely, 2^54181767771 is an apocalyptic number.

54181767771 is a deficient number, since it is larger than the sum of its proper divisors (25989628989).

54181767771 is a wasteful number, since it uses less digits than its factorization.

54181767771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146834106 (or 146834103 counting only the distinct ones).

The product of its digits is 2304960, while the sum is 54.

The spelling of 54181767771 in words is "fifty-four billion, one hundred eighty-one million, seven hundred sixty-seven thousand, seven hundred seventy-one".