3256505630443 has 8 divisors (see below), whose sum is σ = 3507916318928. Its totient is φ = 3005224978464.

The previous prime is 3256505630431. The next prime is 3256505630447. The reversal of 3256505630443 is 3440365056523.

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 3256505630443 - 2²¹ = 3256503533291 is a prime.

It is a super-2 number, since 2×3256505630443² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3256505630393 and 3256505630402.

It is not an unprimeable number, because it can be changed into a prime (3256505630447) 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, 32457105 + ... + 32557282.

It is an arithmetic number, because the mean of its divisors is an integer number (438489539866).

Almost surely, 2^{3256505630443} is an apocalyptic number.

3256505630443 is a deficient number, since it is larger than the sum of its proper divisors (251410688485).

3256505630443 is a wasteful number, since it uses less digits than its factorization.

3256505630443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65018253.

The product of its (nonzero) digits is 3888000, while the sum is 46.

The spelling of 3256505630443 in words is "three trillion, two hundred fifty-six billion, five hundred five million, six hundred thirty thousand, four hundred forty-three".