3256013643 has 8 divisors (see below), whose sum is σ = 4341844800. Its totient is φ = 2170429128.

The previous prime is 3256013639. The next prime is 3256013741. The reversal of 3256013643 is 3463106523.

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

It is not a de Polignac number, because 3256013643 - 2² = 3256013639 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3256013623) 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, 28273 + ... + 85506.

It is an arithmetic number, because the mean of its divisors is an integer number (542730600).

Almost surely, 2^3256013643 is an apocalyptic number.

3256013643 is a deficient number, since it is larger than the sum of its proper divisors (1085831157).

3256013643 is a wasteful number, since it uses less digits than its factorization.

3256013643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123321.

The product of its (nonzero) digits is 38880, while the sum is 33.

The square root of 3256013643 is about 57061.4900173488. The cubic root of 3256013643 is about 1482.1610812179.

The spelling of 3256013643 in words is "three billion, two hundred fifty-six million, thirteen thousand, six hundred forty-three".