12622404177389 has 2 divisors, whose sum is σ = 12622404177390. Its totient is φ = 12622404177388.

The previous prime is 12622404177379. The next prime is 12622404177431. The reversal of 12622404177389 is 98377140422621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9593700916900 + 3028703260489 = 3097370^2 + 1740317^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12622404177389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12622404177319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6311202088694 + 6311202088695.

It is an arithmetic number, because the mean of its divisors is an integer number (6311202088695).

Almost surely, 2^{12622404177389} is an apocalyptic number.

It is an amenable number.

12622404177389 is a deficient number, since it is larger than the sum of its proper divisors (1).

12622404177389 is an equidigital number, since it uses as much as digits as its factorization.

12622404177389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8128512, while the sum is 56.

The spelling of 12622404177389 in words is "twelve trillion, six hundred twenty-two billion, four hundred four million, one hundred seventy-seven thousand, three hundred eighty-nine".