8256738747 has 4 divisors (see below), whose sum is σ = 11008985000. Its totient is φ = 5504492496.

The previous prime is 8256738701. The next prime is 8256738761. The reversal of 8256738747 is 7478376528.

It is a happy number.

8256738747 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 8256738747 - 2¹¹ = 8256736699 is a prime.

It is a super-2 number, since 2×8256738747² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8256738767) 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, 1376123122 + ... + 1376123127.

It is an arithmetic number, because the mean of its divisors is an integer number (2752246250).

Almost surely, 2^8256738747 is an apocalyptic number.

8256738747 is a deficient number, since it is larger than the sum of its proper divisors (2752246253).

8256738747 is a wasteful number, since it uses less digits than its factorization.

8256738747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2752246252.

The product of its digits is 15805440, while the sum is 57.

The square root of 8256738747 is about 90866.5986322807. The cubic root of 8256738747 is about 2021.1700200617.

The spelling of 8256738747 in words is "eight billion, two hundred fifty-six million, seven hundred thirty-eight thousand, seven hundred forty-seven".