3256435455839 has 4 divisors (see below), whose sum is σ = 3427826795640. Its totient is φ = 3085044116040.

The previous prime is 3256435455829. The next prime is 3256435455857. The reversal of 3256435455839 is 9385545346523.

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

It is a cyclic number.

It is not a de Polignac number, because 3256435455839 - 2¹² = 3256435451743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3256435455829) 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, 85695669872 + ... + 85695669909.

It is an arithmetic number, because the mean of its divisors is an integer number (856956698910).

Almost surely, 2^{3256435455839} is an apocalyptic number.

3256435455839 is a deficient number, since it is larger than the sum of its proper divisors (171391339801).

3256435455839 is a wasteful number, since it uses less digits than its factorization.

3256435455839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171391339800.

The product of its digits is 233280000, while the sum is 62.

The spelling of 3256435455839 in words is "three trillion, two hundred fifty-six billion, four hundred thirty-five million, four hundred fifty-five thousand, eight hundred thirty-nine".