3256505002461 has 4 divisors (see below), whose sum is σ = 4342006669952. Its totient is φ = 2171003334972.

The previous prime is 3256505002441. The next prime is 3256505002519. The reversal of 3256505002461 is 1642005056523.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 3256505002461 - 2⁶ = 3256505002397 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 (3256505002441) 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, 542750833741 + ... + 542750833746.

It is an arithmetic number, because the mean of its divisors is an integer number (1085501667488).

Almost surely, 2^{3256505002461} is an apocalyptic number.

It is an amenable number.

3256505002461 is a deficient number, since it is larger than the sum of its proper divisors (1085501667491).

3256505002461 is a wasteful number, since it uses less digits than its factorization.

3256505002461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1085501667490.

The product of its (nonzero) digits is 216000, while the sum is 39.

The spelling of 3256505002461 in words is "three trillion, two hundred fifty-six billion, five hundred five million, two thousand, four hundred sixty-one".