1252390859291 has 8 divisors (see below), whose sum is σ = 1471340310384. Its totient is φ = 1050957364320.

The previous prime is 1252390859281. The next prime is 1252390859341. The reversal of 1252390859291 is 1929580932521.

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

It is a cyclic number.

It is not a de Polignac number, because 1252390859291 - 2¹⁸ = 1252390597147 is a prime.

It is a super-2 number, since 2×1252390859291² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1252390859281) 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, 4378988876 + ... + 4378989161.

It is an arithmetic number, because the mean of its divisors is an integer number (183917538798).

Almost surely, 2^{1252390859291} is an apocalyptic number.

1252390859291 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1252390859291 is a deficient number, since it is larger than the sum of its proper divisors (218949451093).

1252390859291 is a wasteful number, since it uses less digits than its factorization.

1252390859291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8757978061.

The product of its (nonzero) digits is 3499200, while the sum is 56.

The spelling of 1252390859291 in words is "one trillion, two hundred fifty-two billion, three hundred ninety million, eight hundred fifty-nine thousand, two hundred ninety-one".