231373486769 has 2 divisors, whose sum is σ = 231373486770. Its totient is φ = 231373486768.

The previous prime is 231373486733. The next prime is 231373486777. The reversal of 231373486769 is 967684373132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 131251870369 + 100121616400 = 362287^2 + 316420^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231373486769 is a prime.

It is a super-2 number, since 2×231373486769² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (231370486769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115686743384 + 115686743385.

It is an arithmetic number, because the mean of its divisors is an integer number (115686743385).

Almost surely, 2^231373486769 is an apocalyptic number.

It is an amenable number.

231373486769 is a deficient number, since it is larger than the sum of its proper divisors (1).

231373486769 is an equidigital number, since it uses as much as digits as its factorization.

231373486769 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27433728, while the sum is 59.

The spelling of 231373486769 in words is "two hundred thirty-one billion, three hundred seventy-three million, four hundred eighty-six thousand, seven hundred sixty-nine".