253246430851 has 4 divisors (see below), whose sum is σ = 258634652832. Its totient is φ = 247858208872.

The previous prime is 253246430819. The next prime is 253246430873. The reversal of 253246430851 is 158034642352.

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 253246430851 - 2⁵ = 253246430819 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 253246430798 and 253246430807.

It is not an unprimeable number, because it can be changed into a prime (253246430251) 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, 2694110920 + ... + 2694111013.

It is an arithmetic number, because the mean of its divisors is an integer number (64658663208).

Almost surely, 2^253246430851 is an apocalyptic number.

253246430851 is a deficient number, since it is larger than the sum of its proper divisors (5388221981).

253246430851 is an equidigital number, since it uses as much as digits as its factorization.

253246430851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5388221980.

The product of its (nonzero) digits is 691200, while the sum is 43.

The spelling of 253246430851 in words is "two hundred fifty-three billion, two hundred forty-six million, four hundred thirty thousand, eight hundred fifty-one".