52121368968 has 32 divisors (see below), whose sum is σ = 132761980800. Its totient is φ = 17045981888.

The previous prime is 52121368967. The next prime is 52121369009. The reversal of 52121368968 is 86986312125.

It is a self number, because there is not a number n which added to its sum of digits gives 52121368968.

It is not an unprimeable number, because it can be changed into a prime (52121368963) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20486688 + ... + 20489231.

It is an arithmetic number, because the mean of its divisors is an integer number (4148811900).

Almost surely, 2^52121368968 is an apocalyptic number.

It is an amenable number.

52121368968 is an abundant number, since it is smaller than the sum of its proper divisors (80640611832).

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

52121368968 is a wasteful number, since it uses less digits than its factorization.

52121368968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40975981 (or 40975977 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 51.

The spelling of 52121368968 in words is "fifty-two billion, one hundred twenty-one million, three hundred sixty-eight thousand, nine hundred sixty-eight".