4251251208823 has 4 divisors (see below), whose sum is σ = 4501324809360. Its totient is φ = 4001177608288.

The previous prime is 4251251208821. The next prime is 4251251208829. The reversal of 4251251208823 is 3288021521524.

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 4251251208823 - 2¹ = 4251251208821 is a prime.

It is a super-4 number, since 4×4251251208823⁴ (a number of 52 digits) contains 4444 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4251251208823.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4251251208821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125036800243 + ... + 125036800276.

It is an arithmetic number, because the mean of its divisors is an integer number (1125331202340).

Almost surely, 2^{4251251208823} is an apocalyptic number.

4251251208823 is a deficient number, since it is larger than the sum of its proper divisors (250073600537).

4251251208823 is a wasteful number, since it uses less digits than its factorization.

4251251208823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250073600536.

The product of its (nonzero) digits is 307200, while the sum is 43.

The spelling of 4251251208823 in words is "four trillion, two hundred fifty-one billion, two hundred fifty-one million, two hundred eight thousand, eight hundred twenty-three".