23139891828539 has 2 divisors, whose sum is σ = 23139891828540. Its totient is φ = 23139891828538.

The previous prime is 23139891828461. The next prime is 23139891828643. The reversal of 23139891828539 is 93582819893132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23139891828539 - 2³⁶ = 23071172351803 is a prime.

It is not a weakly prime, because it can be changed into another prime (23139891828439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11569945914269 + 11569945914270.

It is an arithmetic number, because the mean of its divisors is an integer number (11569945914270).

Almost surely, 2^{23139891828539} is an apocalyptic number.

23139891828539 is a deficient number, since it is larger than the sum of its proper divisors (1).

23139891828539 is an equidigital number, since it uses as much as digits as its factorization.

23139891828539 is an evil number, because the sum of its binary digits is even.

The product of its digits is 201553920, while the sum is 71.

The spelling of 23139891828539 in words is "twenty-three trillion, one hundred thirty-nine billion, eight hundred ninety-one million, eight hundred twenty-eight thousand, five hundred thirty-nine".