129765262453 has 2 divisors, whose sum is σ = 129765262454. Its totient is φ = 129765262452.

The previous prime is 129765262411. The next prime is 129765262493. The reversal of 129765262453 is 354262567921.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 118010799729 + 11754462724 = 343527^2 + 108418^2 .

It is a cyclic number.

It is not a de Polignac number, because 129765262453 - 2²⁹ = 129228391541 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 129765262453.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129765262493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64882631226 + 64882631227.

It is an arithmetic number, because the mean of its divisors is an integer number (64882631227).

Almost surely, 2^129765262453 is an apocalyptic number.

It is an amenable number.

129765262453 is a deficient number, since it is larger than the sum of its proper divisors (1).

129765262453 is an equidigital number, since it uses as much as digits as its factorization.

129765262453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5443200, while the sum is 52.

The spelling of 129765262453 in words is "one hundred twenty-nine billion, seven hundred sixty-five million, two hundred sixty-two thousand, four hundred fifty-three".