123676487797 has 2 divisors, whose sum is σ = 123676487798. Its totient is φ = 123676487796.

The previous prime is 123676487747. The next prime is 123676487807. The reversal of 123676487797 is 797784676321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 116771874961 + 6904612836 = 341719^2 + 83094^2 .

It is an emirp because it is prime and its reverse (797784676321) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123676487797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123676487707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61838243898 + 61838243899.

It is an arithmetic number, because the mean of its divisors is an integer number (61838243899).

Almost surely, 2^123676487797 is an apocalyptic number.

It is an amenable number.

123676487797 is a deficient number, since it is larger than the sum of its proper divisors (1).

123676487797 is an equidigital number, since it uses as much as digits as its factorization.

123676487797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 149361408, while the sum is 67.

The spelling of 123676487797 in words is "one hundred twenty-three billion, six hundred seventy-six million, four hundred eighty-seven thousand, seven hundred ninety-seven".