2351278873 has 4 divisors (see below), whose sum is σ = 2353711360. Its totient is φ = 2348846388.

The previous prime is 2351278841. The next prime is 2351278879. The reversal of 2351278873 is 3788721532.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2351278873 - 2⁵ = 2351278841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2351278879) 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, 1214793 + ... + 1216726.

It is an arithmetic number, because the mean of its divisors is an integer number (588427840).

Almost surely, 2^2351278873 is an apocalyptic number.

It is an amenable number.

2351278873 is a deficient number, since it is larger than the sum of its proper divisors (2432487).

2351278873 is an equidigital number, since it uses as much as digits as its factorization.

2351278873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2432486.

The product of its digits is 564480, while the sum is 46.

The square root of 2351278873 is about 48489.9873479051. The cubic root of 2351278873 is about 1329.7440238900.

The spelling of 2351278873 in words is "two billion, three hundred fifty-one million, two hundred seventy-eight thousand, eight hundred seventy-three".