2256348678 has 16 divisors (see below), whose sum is σ = 4574516016. Its totient is φ = 741813120.

The previous prime is 2256348673. The next prime is 2256348707. The reversal of 2256348678 is 8768436522.

It is a super-2 number, since 2×2256348678² = 10182218713424695368, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2256348678.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2256348673) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2575303 + ... + 2576178.

It is an arithmetic number, because the mean of its divisors is an integer number (285907251).

Almost surely, 2^2256348678 is an apocalyptic number.

2256348678 is an abundant number, since it is smaller than the sum of its proper divisors (2318167338).

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

2256348678 is a wasteful number, since it uses less digits than its factorization.

2256348678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5151559.

The product of its digits is 3870720, while the sum is 51.

The square root of 2256348678 is about 47501.0387044326. The cubic root of 2256348678 is about 1311.6020021936.

The spelling of 2256348678 in words is "two billion, two hundred fifty-six million, three hundred forty-eight thousand, six hundred seventy-eight".