125262729799 has 2 divisors, whose sum is σ = 125262729800. Its totient is φ = 125262729798.

The previous prime is 125262729797. The next prime is 125262729847. The reversal of 125262729799 is 997927262521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 125262729799 - 2¹ = 125262729797 is a prime.

Together with 125262729797, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125262729793) 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, 62631364899 + 62631364900.

It is an arithmetic number, because the mean of its divisors is an integer number (62631364900).

Almost surely, 2^125262729799 is an apocalyptic number.

125262729799 is a deficient number, since it is larger than the sum of its proper divisors (1).

125262729799 is an equidigital number, since it uses as much as digits as its factorization.

125262729799 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17146080, while the sum is 61.

The spelling of 125262729799 in words is "one hundred twenty-five billion, two hundred sixty-two million, seven hundred twenty-nine thousand, seven hundred ninety-nine".