2258771378 has 8 divisors (see below), whose sum is σ = 3388394268. Its totient is φ = 1129306624.

The previous prime is 2258771377. The next prime is 2258771387. The reversal of 2258771378 is 8731778522.

It can be written as a sum of positive squares in 2 ways, for example, as 2227556809 + 31214569 = 47197^2 + 5587^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (2258771371) 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, 7250 + ... + 67602.

Almost surely, 2^2258771378 is an apocalyptic number.

2258771378 is a deficient number, since it is larger than the sum of its proper divisors (1129622890).

2258771378 is a wasteful number, since it uses less digits than its factorization.

2258771378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79068.

The product of its digits is 1317120, while the sum is 50.

The square root of 2258771378 is about 47526.5334102962. The cubic root of 2258771378 is about 1312.0712679566.

The spelling of 2258771378 in words is "two billion, two hundred fifty-eight million, seven hundred seventy-one thousand, three hundred seventy-eight".