652177053721 has 2 divisors, whose sum is σ = 652177053722. Its totient is φ = 652177053720.

The previous prime is 652177053673. The next prime is 652177053763. The reversal of 652177053721 is 127350771256.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 648611172496 + 3565881225 = 805364^2 + 59715^2 .

It is a cyclic number.

It is not a de Polignac number, because 652177053721 - 2³⁷ = 514738100249 is a prime.

It is not a weakly prime, because it can be changed into another prime (652177053791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 326088526860 + 326088526861.

It is an arithmetic number, because the mean of its divisors is an integer number (326088526861).

Almost surely, 2^652177053721 is an apocalyptic number.

It is an amenable number.

652177053721 is a deficient number, since it is larger than the sum of its proper divisors (1).

652177053721 is an equidigital number, since it uses as much as digits as its factorization.

652177053721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 617400, while the sum is 46.

The spelling of 652177053721 in words is "six hundred fifty-two billion, one hundred seventy-seven million, fifty-three thousand, seven hundred twenty-one".