6256678281 has 16 divisors (see below), whose sum is σ = 9791662464. Its totient is φ = 3478616064.

The previous prime is 6256678273. The next prime is 6256678291. The reversal of 6256678281 is 1828766526.

It is a happy number.

It is not a de Polignac number, because 6256678281 - 2³ = 6256678273 is a prime.

It is a super-2 number, since 2×6256678281² = 78292046223874229922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6256678291) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4025400 + ... + 4026953.

It is an arithmetic number, because the mean of its divisors is an integer number (611978904).

Almost surely, 2^6256678281 is an apocalyptic number.

It is an amenable number.

6256678281 is a deficient number, since it is larger than the sum of its proper divisors (3534984183).

6256678281 is a wasteful number, since it uses less digits than its factorization.

6256678281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8052400.

The product of its digits is 1935360, while the sum is 51.

The square root of 6256678281 is about 79099.1673849984. The cubic root of 6256678281 is about 1842.6715957145.

The spelling of 6256678281 in words is "six billion, two hundred fifty-six million, six hundred seventy-eight thousand, two hundred eighty-one".