53693115840 has 896 divisors, whose sum is σ = 238253137920. Its totient is φ = 11079991296.

The previous prime is 53693115799. The next prime is 53693115857. The reversal of 53693115840 is 4851139635.

53693115840 is a `hidden beast` number, since 5 + 3 + 69 + 3 + 1 + 1 + 584 + 0 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 36952554 + ... + 36954006.

It is an arithmetic number, because the mean of its divisors is an integer number (265907520).

Almost surely, 2^53693115840 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 53693115840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119126568960).

53693115840 is an abundant number, since it is smaller than the sum of its proper divisors (184560022080).

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

53693115840 is a wasteful number, since it uses less digits than its factorization.

53693115840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1546 (or 1530 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 45.

The spelling of 53693115840 in words is "fifty-three billion, six hundred ninety-three million, one hundred fifteen thousand, eight hundred forty".