2251911798 has 48 divisors (see below), whose sum is σ = 5031936000. Its totient is φ = 727378560.

The previous prime is 2251911751. The next prime is 2251911833. The reversal of 2251911798 is 8971191522.

2251911798 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2251911798² = 10142213491943185608, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 99723 + ... + 120201.

It is an arithmetic number, because the mean of its divisors is an integer number (104832000).

Almost surely, 2^2251911798 is an apocalyptic number.

2251911798 is an abundant number, since it is smaller than the sum of its proper divisors (2780024202).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2251911798 is a wasteful number, since it uses less digits than its factorization.

2251911798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20677 (or 20674 counting only the distinct ones).

The product of its digits is 90720, while the sum is 45.

The square root of 2251911798 is about 47454.3127439435. The cubic root of 2251911798 is about 1310.7417274566.

The spelling of 2251911798 in words is "two billion, two hundred fifty-one million, nine hundred eleven thousand, seven hundred ninety-eight".