2279798251 has 4 divisors (see below), whose sum is σ = 2287129104. Its totient is φ = 2272467400.

The previous prime is 2279798221. The next prime is 2279798263. The reversal of 2279798251 is 1528979722.

It is a happy number.

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 2279798251 - 2⁵ = 2279798219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2279798221) 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, 3664960 + ... + 3665581.

It is an arithmetic number, because the mean of its divisors is an integer number (571782276).

Almost surely, 2^2279798251 is an apocalyptic number.

2279798251 is a deficient number, since it is larger than the sum of its proper divisors (7330853).

2279798251 is an equidigital number, since it uses as much as digits as its factorization.

2279798251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7330852.

The product of its digits is 1270080, while the sum is 52.

The square root of 2279798251 is about 47747.2329145889. The cubic root of 2279798251 is about 1316.1300508865.

The spelling of 2279798251 in words is "two billion, two hundred seventy-nine million, seven hundred ninety-eight thousand, two hundred fifty-one".