652630837489 has 2 divisors, whose sum is σ = 652630837490. Its totient is φ = 652630837488.

The previous prime is 652630837451. The next prime is 652630837501. The reversal of 652630837489 is 984738036256.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 544252930225 + 108377907264 = 737735^2 + 329208^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-652630837489 is a prime.

It is not a weakly prime, because it can be changed into another prime (652630837409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 326315418744 + 326315418745.

It is an arithmetic number, because the mean of its divisors is an integer number (326315418745).

Almost surely, 2^652630837489 is an apocalyptic number.

It is an amenable number.

652630837489 is a deficient number, since it is larger than the sum of its proper divisors (1).

652630837489 is an equidigital number, since it uses as much as digits as its factorization.

652630837489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52254720, while the sum is 61.

The spelling of 652630837489 in words is "six hundred fifty-two billion, six hundred thirty million, eight hundred thirty-seven thousand, four hundred eighty-nine".