3256947915 has 16 divisors (see below), whose sum is σ = 5611972128. Its totient is φ = 1603420416.

The previous prime is 3256947901. The next prime is 3256947919. The reversal of 3256947915 is 5197496523.

It is not a de Polignac number, because 3256947915 - 2⁶ = 3256947851 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3256947919) 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, 8350954 + ... + 8351343.

It is an arithmetic number, because the mean of its divisors is an integer number (350748258).

Almost surely, 2^3256947915 is an apocalyptic number.

3256947915 is a deficient number, since it is larger than the sum of its proper divisors (2355024213).

3256947915 is a wasteful number, since it uses less digits than its factorization.

3256947915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16702318.

The product of its digits is 2041200, while the sum is 51.

The square root of 3256947915 is about 57069.6759671894. The cubic root of 3256947915 is about 1482.3028301299.

The spelling of 3256947915 in words is "three billion, two hundred fifty-six million, nine hundred forty-seven thousand, nine hundred fifteen".