51330314649599 has 4 divisors (see below), whose sum is σ = 51414878595264. Its totient is φ = 51245750703936.

The previous prime is 51330314649563. The next prime is 51330314649637. The reversal of 51330314649599 is 99594641303315.

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 51330314649599 - 2³² = 51326019682303 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 (51330314649799) 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, 42281971922 + ... + 42281973135.

It is an arithmetic number, because the mean of its divisors is an integer number (12853719648816).

Almost surely, 2^{51330314649599} is an apocalyptic number.

51330314649599 is a deficient number, since it is larger than the sum of its proper divisors (84563945665).

51330314649599 is an equidigital number, since it uses as much as digits as its factorization.

51330314649599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84563945664.

The product of its (nonzero) digits is 47239200, while the sum is 62.

The spelling of 51330314649599 in words is "fifty-one trillion, three hundred thirty billion, three hundred fourteen million, six hundred forty-nine thousand, five hundred ninety-nine".