12520862238377 has 2 divisors, whose sum is σ = 12520862238378. Its totient is φ = 12520862238376.

The previous prime is 12520862238349. The next prime is 12520862238413. The reversal of 12520862238377 is 77383226802521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11111582227216 + 1409280011161 = 3333404^2 + 1187131^2 .

It is a cyclic number.

It is not a de Polignac number, because 12520862238377 - 2²⁰ = 12520861189801 is a prime.

It is not a weakly prime, because it can be changed into another prime (12520862238317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6260431119188 + 6260431119189.

It is an arithmetic number, because the mean of its divisors is an integer number (6260431119189).

Almost surely, 2^{12520862238377} is an apocalyptic number.

It is an amenable number.

12520862238377 is a deficient number, since it is larger than the sum of its proper divisors (1).

12520862238377 is an equidigital number, since it uses as much as digits as its factorization.

12520862238377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13547520, while the sum is 56.

The spelling of 12520862238377 in words is "twelve trillion, five hundred twenty billion, eight hundred sixty-two million, two hundred thirty-eight thousand, three hundred seventy-seven".