54219857634 has 24 divisors (see below), whose sum is σ = 117483649920. Its totient is φ = 18072164088.

The previous prime is 54219857617. The next prime is 54219857687. The reversal of 54219857634 is 43675891245.

It is a happy number.

54219857634 is a `hidden beast` number, since 54 + 2 + 19 + 8 + 576 + 3 + 4 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 235947 + ... + 405105.

It is an arithmetic number, because the mean of its divisors is an integer number (4895152080).

Almost surely, 2^54219857634 is an apocalyptic number.

54219857634 is an abundant number, since it is smaller than the sum of its proper divisors (63263792286).

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

54219857634 is a wasteful number, since it uses less digits than its factorization.

54219857634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186974 (or 186971 counting only the distinct ones).

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

It can be divided in two parts, 54219857 and 634, that added together give a triangular number (54220491 = T₁₀₄₁₃).

The spelling of 54219857634 in words is "fifty-four billion, two hundred nineteen million, eight hundred fifty-seven thousand, six hundred thirty-four".