123797889629 has 2 divisors, whose sum is σ = 123797889630. Its totient is φ = 123797889628.

The previous prime is 123797889577. The next prime is 123797889671. The reversal of 123797889629 is 926988797321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97097676025 + 26700213604 = 311605^2 + 163402^2 .

It is a cyclic number.

It is not a de Polignac number, because 123797889629 - 2³² = 119502922333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123797889329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61898944814 + 61898944815.

It is an arithmetic number, because the mean of its divisors is an integer number (61898944815).

Almost surely, 2^123797889629 is an apocalyptic number.

It is an amenable number.

123797889629 is a deficient number, since it is larger than the sum of its proper divisors (1).

123797889629 is an equidigital number, since it uses as much as digits as its factorization.

123797889629 is an evil number, because the sum of its binary digits is even.

The product of its digits is 164602368, while the sum is 71.

The spelling of 123797889629 in words is "one hundred twenty-three billion, seven hundred ninety-seven million, eight hundred eighty-nine thousand, six hundred twenty-nine".