1252388626079 has 4 divisors (see below), whose sum is σ = 1252514213976. Its totient is φ = 1252263038184.

The previous prime is 1252388626067. The next prime is 1252388626147. The reversal of 1252388626079 is 9706268832521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1252388626079 - 2⁸ = 1252388625823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252388626579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62778989 + ... + 62798934.

It is an arithmetic number, because the mean of its divisors is an integer number (313128553494).

Almost surely, 2^{1252388626079} is an apocalyptic number.

1252388626079 is a deficient number, since it is larger than the sum of its proper divisors (125587897).

1252388626079 is an equidigital number, since it uses as much as digits as its factorization.

1252388626079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125587896.

The product of its (nonzero) digits is 17418240, while the sum is 59.

The spelling of 1252388626079 in words is "one trillion, two hundred fifty-two billion, three hundred eighty-eight million, six hundred twenty-six thousand, seventy-nine".