1252627501399 has 8 divisors (see below), whose sum is σ = 1254645798912. Its totient is φ = 1250610805080.

The previous prime is 1252627501291. The next prime is 1252627501409. The reversal of 1252627501399 is 9931057262521.

It is a happy number.

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-1252627501399 is a prime.

It is a super-2 number, since 2×1252627501399² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252627501799) 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, 1170534 + ... + 1968604.

It is an arithmetic number, because the mean of its divisors is an integer number (156830724864).

Almost surely, 2^{1252627501399} is an apocalyptic number.

1252627501399 is a deficient number, since it is larger than the sum of its proper divisors (2018297513).

1252627501399 is a wasteful number, since it uses less digits than its factorization.

1252627501399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800597.

The product of its (nonzero) digits is 2041200, while the sum is 52.

The spelling of 1252627501399 in words is "one trillion, two hundred fifty-two billion, six hundred twenty-seven million, five hundred one thousand, three hundred ninety-nine".