7798382251 has 4 divisors (see below), whose sum is σ = 8507326104. Its totient is φ = 7089438400.

The previous prime is 7798382237. The next prime is 7798382281. The reversal of 7798382251 is 1522838977.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1522838977 = 11 ⋅138439907.

It is not a de Polignac number, because 7798382251 - 2²³ = 7789993643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7798382281) 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, 354471910 + ... + 354471931.

It is an arithmetic number, because the mean of its divisors is an integer number (2126831526).

Almost surely, 2^7798382251 is an apocalyptic number.

7798382251 is a deficient number, since it is larger than the sum of its proper divisors (708943853).

7798382251 is a wasteful number, since it uses less digits than its factorization.

7798382251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 708943852.

The product of its digits is 1693440, while the sum is 52.

The square root of 7798382251 is about 88308.4494881435. The cubic root of 7798382251 is about 1983.0553660361.

The spelling of 7798382251 in words is "seven billion, seven hundred ninety-eight million, three hundred eighty-two thousand, two hundred fifty-one".