51632674459 has 4 divisors (see below), whose sum is σ = 51716358504. Its totient is φ = 51548990416.

The previous prime is 51632674409. The next prime is 51632674487. The reversal of 51632674459 is 95447623615.

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 51632674459 - 2²⁷ = 51498456731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51632674409) 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, 41841097 + ... + 41842330.

It is an arithmetic number, because the mean of its divisors is an integer number (12929089626).

Almost surely, 2^51632674459 is an apocalyptic number.

51632674459 is a deficient number, since it is larger than the sum of its proper divisors (83684045).

51632674459 is an equidigital number, since it uses as much as digits as its factorization.

51632674459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83684044.

The product of its digits is 5443200, while the sum is 52.

The spelling of 51632674459 in words is "fifty-one billion, six hundred thirty-two million, six hundred seventy-four thousand, four hundred fifty-nine".