9421253879 has 4 divisors (see below), whose sum is σ = 9421702080. Its totient is φ = 9420805680.

The previous prime is 9421253833. The next prime is 9421253909. The reversal of 9421253879 is 9783521249.

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 9421253879 - 2²⁰ = 9420205303 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 (9421252879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 190934 + ... + 235155.

It is an arithmetic number, because the mean of its divisors is an integer number (2355425520).

Almost surely, 2^9421253879 is an apocalyptic number.

9421253879 is a deficient number, since it is larger than the sum of its proper divisors (448201).

9421253879 is a wasteful number, since it uses less digits than its factorization.

9421253879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448200.

The product of its digits is 1088640, while the sum is 50.

The square root of 9421253879 is about 97063.1437724948. The cubic root of 9421253879 is about 2112.0437120744.

The spelling of 9421253879 in words is "nine billion, four hundred twenty-one million, two hundred fifty-three thousand, eight hundred seventy-nine".