53993538984 has 192 divisors, whose sum is σ = 173901150720. Its totient is φ = 13571452800.

The previous prime is 53993538961. The next prime is 53993538997. The reversal of 53993538984 is 48983539935.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (66).

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, 1760727 + ... + 1791129.

It is an arithmetic number, because the mean of its divisors is an integer number (905735160).

Almost surely, 2^53993538984 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 53993538984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86950575360).

53993538984 is an abundant number, since it is smaller than the sum of its proper divisors (119907611736).

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

53993538984 is a wasteful number, since it uses less digits than its factorization.

53993538984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30492 (or 30457 counting only the distinct ones).

The product of its digits is 125971200, while the sum is 66.

The spelling of 53993538984 in words is "fifty-three billion, nine hundred ninety-three million, five hundred thirty-eight thousand, nine hundred eighty-four".