54021988469 has 8 divisors (see below), whose sum is σ = 57246900000. Its totient is φ = 50835241872.

The previous prime is 54021988439. The next prime is 54021988477. The reversal of 54021988469 is 96488912045.

54021988469 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 54021988469 - 2²⁸ = 53753553013 is a prime.

It is a super-2 number, since 2×54021988469² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54021988409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9538319 + ... + 9543980.

It is an arithmetic number, because the mean of its divisors is an integer number (7155862500).

Almost surely, 2^54021988469 is an apocalyptic number.

It is an amenable number.

54021988469 is a deficient number, since it is larger than the sum of its proper divisors (3224911531).

54021988469 is a wasteful number, since it uses less digits than its factorization.

54021988469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19082467.

The product of its (nonzero) digits is 4976640, while the sum is 56.

The spelling of 54021988469 in words is "fifty-four billion, twenty-one million, nine hundred eighty-eight thousand, four hundred sixty-nine".