53117758668 has 96 divisors (see below), whose sum is σ = 136796083200. Its totient is φ = 15942311424.

The previous prime is 53117758627. The next prime is 53117758691. The reversal of 53117758668 is 86685771135.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 996928 + ... + 1048856.

It is an arithmetic number, because the mean of its divisors is an integer number (1424959200).

Almost surely, 2^53117758668 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 53117758668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68398041600).

53117758668 is an abundant number, since it is smaller than the sum of its proper divisors (83678324532).

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

53117758668 is a wasteful number, since it uses less digits than its factorization.

53117758668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52111 (or 52109 counting only the distinct ones).

The product of its digits is 8467200, while the sum is 57.

The spelling of 53117758668 in words is "fifty-three billion, one hundred seventeen million, seven hundred fifty-eight thousand, six hundred sixty-eight".