51329064959 has 4 divisors (see below), whose sum is σ = 52984841280. Its totient is φ = 49673288640.

The previous prime is 51329064947. The next prime is 51329064989. The reversal of 51329064959 is 95946092315.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51329064959 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51329064959.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51329064929) 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, 827888114 + ... + 827888175.

It is an arithmetic number, because the mean of its divisors is an integer number (13246210320).

Almost surely, 2^51329064959 is an apocalyptic number.

51329064959 is a deficient number, since it is larger than the sum of its proper divisors (1655776321).

51329064959 is a wasteful number, since it uses less digits than its factorization.

51329064959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1655776320.

The product of its (nonzero) digits is 2624400, while the sum is 53.

The spelling of 51329064959 in words is "fifty-one billion, three hundred twenty-nine million, sixty-four thousand, nine hundred fifty-nine".