652379921857 has 16 divisors (see below), whose sum is σ = 694439792640. Its totient is φ = 610730422272.

The previous prime is 652379921839. The next prime is 652379921873. The reversal of 652379921857 is 758129973256.

It is a cyclic number.

It is not a de Polignac number, because 652379921857 - 2¹⁹ = 652379397569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (652379921807) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31746528 + ... + 31767070.

It is an arithmetic number, because the mean of its divisors is an integer number (43402487040).

Almost surely, 2^652379921857 is an apocalyptic number.

It is an amenable number.

652379921857 is a deficient number, since it is larger than the sum of its proper divisors (42059870783).

652379921857 is a wasteful number, since it uses less digits than its factorization.

652379921857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30432.

The product of its digits is 57153600, while the sum is 64.

The spelling of 652379921857 in words is "six hundred fifty-two billion, three hundred seventy-nine million, nine hundred twenty-one thousand, eight hundred fifty-seven".