54519732468 has 18 divisors (see below), whose sum is σ = 137813768274. Its totient is φ = 18173244144.

The previous prime is 54519732461. The next prime is 54519732499. The reversal of 54519732468 is 86423791545.

It is a happy number.

54519732468 is a `hidden beast` number, since 54 + 519 + 7 + 32 + 46 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 27409451364 + 27110281104 = 165558^2 + 164652^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54519732461) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 757218471 + ... + 757218542.

Almost surely, 2^54519732468 is an apocalyptic number.

It is an amenable number.

54519732468 is an abundant number, since it is smaller than the sum of its proper divisors (83294035806).

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

54519732468 is a wasteful number, since it uses less digits than its factorization.

54519732468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1514437023 (or 1514437018 counting only the distinct ones).

The product of its digits is 7257600, while the sum is 54.

The spelling of 54519732468 in words is "fifty-four billion, five hundred nineteen million, seven hundred thirty-two thousand, four hundred sixty-eight".