54375191640 has 384 divisors, whose sum is σ = 227436318720. Its totient is φ = 10934092800.

The previous prime is 54375191639. The next prime is 54375191659. The reversal of 54375191640 is 4619157345.

54375191640 is a `hidden beast` number, since 5 + 437 + 51 + 9 + 164 + 0 = 666.

It is a super-2 number, since 2×54375191640² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 827682 + ... + 890958.

It is an arithmetic number, because the mean of its divisors is an integer number (592282080).

Almost surely, 2^54375191640 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54375191640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113718159360).

54375191640 is an abundant number, since it is smaller than the sum of its proper divisors (173061127080).

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

54375191640 is a wasteful number, since it uses less digits than its factorization.

54375191640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63343 (or 63336 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 45.

The spelling of 54375191640 in words is "fifty-four billion, three hundred seventy-five million, one hundred ninety-one thousand, six hundred forty".