52399231789 has 2 divisors, whose sum is σ = 52399231790. Its totient is φ = 52399231788.

The previous prime is 52399231723. The next prime is 52399231793. The reversal of 52399231789 is 98713299325.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42535762564 + 9863469225 = 206242^2 + 99315^2 .

It is a cyclic number.

It is not a de Polignac number, because 52399231789 - 2¹¹ = 52399229741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52309231789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26199615894 + 26199615895.

It is an arithmetic number, because the mean of its divisors is an integer number (26199615895).

Almost surely, 2^52399231789 is an apocalyptic number.

It is an amenable number.

52399231789 is a deficient number, since it is larger than the sum of its proper divisors (1).

52399231789 is an equidigital number, since it uses as much as digits as its factorization.

52399231789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7348320, while the sum is 58.

The spelling of 52399231789 in words is "fifty-two billion, three hundred ninety-nine million, two hundred thirty-one thousand, seven hundred eighty-nine".