12650877820901 has 2 divisors, whose sum is σ = 12650877820902. Its totient is φ = 12650877820900.

The previous prime is 12650877820891. The next prime is 12650877820951. The reversal of 12650877820901 is 10902877805621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12589794204100 + 61083616801 = 3548210^2 + 247151^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12650877820901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12650877820951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6325438910450 + 6325438910451.

It is an arithmetic number, because the mean of its divisors is an integer number (6325438910451).

Almost surely, 2^{12650877820901} is an apocalyptic number.

It is an amenable number.

12650877820901 is a deficient number, since it is larger than the sum of its proper divisors (1).

12650877820901 is an equidigital number, since it uses as much as digits as its factorization.

12650877820901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3386880, while the sum is 56.

The spelling of 12650877820901 in words is "twelve trillion, six hundred fifty billion, eight hundred seventy-seven million, eight hundred twenty thousand, nine hundred one".