12625157287321 has 2 divisors, whose sum is σ = 12625157287322. Its totient is φ = 12625157287320.

The previous prime is 12625157287271. The next prime is 12625157287343. The reversal of 12625157287321 is 12378275152621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12447630734400 + 177526552921 = 3528120^2 + 421339^2 .

It is a cyclic number.

It is not a de Polignac number, because 12625157287321 - 2⁹ = 12625157286809 is a prime.

It is not a weakly prime, because it can be changed into another prime (12625157287121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6312578643660 + 6312578643661.

It is an arithmetic number, because the mean of its divisors is an integer number (6312578643661).

Almost surely, 2^{12625157287321} is an apocalyptic number.

It is an amenable number.

12625157287321 is a deficient number, since it is larger than the sum of its proper divisors (1).

12625157287321 is an equidigital number, since it uses as much as digits as its factorization.

12625157287321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2822400, while the sum is 52.

The spelling of 12625157287321 in words is "twelve trillion, six hundred twenty-five billion, one hundred fifty-seven million, two hundred eighty-seven thousand, three hundred twenty-one".