53994739968 has 432 divisors, whose sum is σ = 175305049920. Its totient is φ = 16476659712.

The previous prime is 53994739933. The next prime is 53994739979. The reversal of 53994739968 is 86993749935.

53994739968 is a `hidden beast` number, since 5 + 3 + 9 + 9 + 473 + 99 + 68 = 666.

It is a tau number, because it is divible by the number of its divisors (432).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a junction number, because it is equal to n+sod(n) for n = 53994739896 and 53994739905.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 144757830 + ... + 144758202.

Almost surely, 2^53994739968 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 53994739968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87652524960).

53994739968 is an abundant number, since it is smaller than the sum of its proper divisors (121310309952).

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

53994739968 is a wasteful number, since it uses less digits than its factorization.

53994739968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 596 (or 570 counting only the distinct ones).

The product of its digits is 396809280, while the sum is 72.

The spelling of 53994739968 in words is "fifty-three billion, nine hundred ninety-four million, seven hundred thirty-nine thousand, nine hundred sixty-eight".