52017217681 has 48 divisors (see below), whose sum is σ = 65013592000. Its totient is φ = 41226641280.

The previous prime is 52017217673. The next prime is 52017217723. The reversal of 52017217681 is 18671271025.

It is not a de Polignac number, because 52017217681 - 2³ = 52017217673 is a prime.

It is a super-2 number, since 2×52017217681² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (52017217601) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10428070 + ... + 10433056.

Almost surely, 2^52017217681 is an apocalyptic number.

It is an amenable number.

52017217681 is a deficient number, since it is larger than the sum of its proper divisors (12996374319).

52017217681 is a wasteful number, since it uses less digits than its factorization.

52017217681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5390 (or 5379 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 40.

The spelling of 52017217681 in words is "fifty-two billion, seventeen million, two hundred seventeen thousand, six hundred eighty-one".