2277638379 has 8 divisors (see below), whose sum is σ = 3374279120. Its totient is φ = 1518425568.

The previous prime is 2277638369. The next prime is 2277638383. The reversal of 2277638379 is 9738367722.

It is not a de Polignac number, because 2277638379 - 2⁵ = 2277638347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2277638309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42178462 + ... + 42178515.

It is an arithmetic number, because the mean of its divisors is an integer number (421784890).

Almost surely, 2^2277638379 is an apocalyptic number.

2277638379 is a deficient number, since it is larger than the sum of its proper divisors (1096640741).

2277638379 is an equidigital number, since it uses as much as digits as its factorization.

2277638379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84356986 (or 84356980 counting only the distinct ones).

The product of its digits is 5334336, while the sum is 54.

The square root of 2277638379 is about 47724.6097836326. The cubic root of 2277638379 is about 1315.7142873968.

The spelling of 2277638379 in words is "two billion, two hundred seventy-seven million, six hundred thirty-eight thousand, three hundred seventy-nine".