1252776276389 has 8 divisors (see below), whose sum is σ = 1366692454080. Its totient is φ = 1138864669600.

The previous prime is 1252776276379. The next prime is 1252776276421. The reversal of 1252776276389 is 9836726772521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1252776276389 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 (1252776276359) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 556577 + ... + 1677894.

It is an arithmetic number, because the mean of its divisors is an integer number (170836556760).

Almost surely, 2^{1252776276389} is an apocalyptic number.

It is an amenable number.

1252776276389 is a deficient number, since it is larger than the sum of its proper divisors (113916177691).

1252776276389 is a wasteful number, since it uses less digits than its factorization.

1252776276389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2285451.

The product of its digits is 106686720, while the sum is 65.

The spelling of 1252776276389 in words is "one trillion, two hundred fifty-two billion, seven hundred seventy-six million, two hundred seventy-six thousand, three hundred eighty-nine".