2256347747 has 8 divisors (see below), whose sum is σ = 2307675744. Its totient is φ = 2205344128.

The previous prime is 2256347713. The next prime is 2256347759. The reversal of 2256347747 is 7477436522.

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

It is a cyclic number.

It is not a de Polignac number, because 2256347747 - 2¹⁰ = 2256346723 is a prime.

It is a super-2 number, since 2×2256347747² = 10182210310783952018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2256347707) 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, 66998 + ... + 94875.

It is an arithmetic number, because the mean of its divisors is an integer number (288459468).

Almost surely, 2^2256347747 is an apocalyptic number.

2256347747 is a deficient number, since it is larger than the sum of its proper divisors (51327997).

2256347747 is a wasteful number, since it uses less digits than its factorization.

2256347747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162189.

The product of its digits is 1975680, while the sum is 47.

The square root of 2256347747 is about 47501.0289046458. The cubic root of 2256347747 is about 1311.6018217987.

The spelling of 2256347747 in words is "two billion, two hundred fifty-six million, three hundred forty-seven thousand, seven hundred forty-seven".