23502138679 has 2 divisors, whose sum is σ = 23502138680. Its totient is φ = 23502138678.

The previous prime is 23502138643. The next prime is 23502138697. The reversal of 23502138679 is 97683120532.

Together with next prime (23502138697) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23502138679 - 2⁹ = 23502138167 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23502138619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11751069339 + 11751069340.

It is an arithmetic number, because the mean of its divisors is an integer number (11751069340).

Almost surely, 2^23502138679 is an apocalyptic number.

23502138679 is a deficient number, since it is larger than the sum of its proper divisors (1).

23502138679 is an equidigital number, since it uses as much as digits as its factorization.

23502138679 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 544320, while the sum is 46.

The spelling of 23502138679 in words is "twenty-three billion, five hundred two million, one hundred thirty-eight thousand, six hundred seventy-nine".