2278461377 has 4 divisors (see below), whose sum is σ = 2288411220. Its totient is φ = 2268511536.

The previous prime is 2278461349. The next prime is 2278461461. The reversal of 2278461377 is 7731648722.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1003685761 + 1274775616 = 31681^2 + 35704^2 .

It is a cyclic number.

It is not a de Polignac number, because 2278461377 - 2¹⁶ = 2278395841 is a prime.

It is a super-3 number, since 3×2278461377³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2278461877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4974578 + ... + 4975035.

It is an arithmetic number, because the mean of its divisors is an integer number (572102805).

Almost surely, 2^2278461377 is an apocalyptic number.

It is an amenable number.

2278461377 is a deficient number, since it is larger than the sum of its proper divisors (9949843).

2278461377 is an equidigital number, since it uses as much as digits as its factorization.

2278461377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9949842.

The product of its digits is 790272, while the sum is 47.

The square root of 2278461377 is about 47733.2313697701. The cubic root of 2278461377 is about 1315.8727409717.

The spelling of 2278461377 in words is "two billion, two hundred seventy-eight million, four hundred sixty-one thousand, three hundred seventy-seven".