123474636629 has 2 divisors, whose sum is σ = 123474636630. Its totient is φ = 123474636628.

The previous prime is 123474636613. The next prime is 123474636643. The reversal of 123474636629 is 926636474321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67196563729 + 56278072900 = 259223^2 + 237230^2 .

It is an emirp because it is prime and its reverse (926636474321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123474636629 - 2⁴ = 123474636613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123474236629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61737318314 + 61737318315.

It is an arithmetic number, because the mean of its divisors is an integer number (61737318315).

Almost surely, 2^123474636629 is an apocalyptic number.

It is an amenable number.

123474636629 is a deficient number, since it is larger than the sum of its proper divisors (1).

123474636629 is an equidigital number, since it uses as much as digits as its factorization.

123474636629 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7838208, while the sum is 53.

The spelling of 123474636629 in words is "one hundred twenty-three billion, four hundred seventy-four million, six hundred thirty-six thousand, six hundred twenty-nine".