123769622591987 has 2 divisors, whose sum is σ = 123769622591988. Its totient is φ = 123769622591986.

The previous prime is 123769622591903. The next prime is 123769622592017. The reversal of 123769622591987 is 789195226967321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123769622591987 - 2³² = 123765327624691 is a prime.

It is not a weakly prime, because it can be changed into another prime (123769622591887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61884811295993 + 61884811295994.

It is an arithmetic number, because the mean of its divisors is an integer number (61884811295994).

Almost surely, 2^{123769622591987} is an apocalyptic number.

123769622591987 is a deficient number, since it is larger than the sum of its proper divisors (1).

123769622591987 is an equidigital number, since it uses as much as digits as its factorization.

123769622591987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1234517760, while the sum is 77.

The spelling of 123769622591987 in words is "one hundred twenty-three trillion, seven hundred sixty-nine billion, six hundred twenty-two million, five hundred ninety-one thousand, nine hundred eighty-seven".