54389691720 has 192 divisors, whose sum is σ = 217558897920. Its totient is φ = 11475620352.

The previous prime is 54389691667. The next prime is 54389691739. The reversal of 54389691720 is 2719698345.

54389691720 is a `hidden beast` number, since 543 + 8 + 9 + 6 + 91 + 7 + 2 + 0 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 797364 + ... + 862883.

It is an arithmetic number, because the mean of its divisors is an integer number (1133119260).

It is a 1-persistent number, because it is pandigital, but 2⋅54389691720 = 108779383440 is not.

Almost surely, 2^54389691720 is an apocalyptic number.

It is an amenable number.

54389691720 is an abundant number, since it is smaller than the sum of its proper divisors (163169206200).

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

54389691720 is a wasteful number, since it uses less digits than its factorization.

54389691720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1660284 (or 1660277 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 54.

The spelling of 54389691720 in words is "fifty-four billion, three hundred eighty-nine million, six hundred ninety-one thousand, seven hundred twenty".