652144638191 has 2 divisors, whose sum is σ = 652144638192. Its totient is φ = 652144638190.

The previous prime is 652144638163. The next prime is 652144638251. The reversal of 652144638191 is 191836441256.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 652144638191 - 2³⁴ = 634964769007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (652144638091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 326072319095 + 326072319096.

It is an arithmetic number, because the mean of its divisors is an integer number (326072319096).

Almost surely, 2^652144638191 is an apocalyptic number.

652144638191 is a deficient number, since it is larger than the sum of its proper divisors (1).

652144638191 is an equidigital number, since it uses as much as digits as its factorization.

652144638191 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1244160, while the sum is 50.

The spelling of 652144638191 in words is "six hundred fifty-two billion, one hundred forty-four million, six hundred thirty-eight thousand, one hundred ninety-one".