53538739968 has 432 divisors, whose sum is σ = 172897283328. Its totient is φ = 14399078400.

The previous prime is 53538739913. The next prime is 53538739987. The reversal of 53538739968 is 86993783535.

It is a super-2 number, since 2×53538739968² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 53538739899 and 53538739908.

It is a congruent number.

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, 222152328 + ... + 222152568.

Almost surely, 2^53538739968 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 53538739968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86448641664).

53538739968 is an abundant number, since it is smaller than the sum of its proper divisors (119358543360).

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

53538739968 is a wasteful number, since it uses less digits than its factorization.

53538739968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372 (or 327 counting only the distinct ones).

The product of its digits is 146966400, while the sum is 66.

The spelling of 53538739968 in words is "fifty-three billion, five hundred thirty-eight million, seven hundred thirty-nine thousand, nine hundred sixty-eight".