51782441459 has 4 divisors (see below), whose sum is σ = 59179933104. Its totient is φ = 44384949816.

The previous prime is 51782441453. The next prime is 51782441461. The reversal of 51782441459 is 95414428715.

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 51782441459 - 2⁸ = 51782441203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51782441453) 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, 3698745812 + ... + 3698745825.

It is an arithmetic number, because the mean of its divisors is an integer number (14794983276).

Almost surely, 2^51782441459 is an apocalyptic number.

51782441459 is a deficient number, since it is larger than the sum of its proper divisors (7397491645).

51782441459 is an equidigital number, since it uses as much as digits as its factorization.

51782441459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7397491644.

The product of its digits is 1612800, while the sum is 50.

The spelling of 51782441459 in words is "fifty-one billion, seven hundred eighty-two million, four hundred forty-one thousand, four hundred fifty-nine".