51718229746 has 8 divisors (see below), whose sum is σ = 77579302320. Its totient is φ = 25858462308.

The previous prime is 51718229707. The next prime is 51718229779. The reversal of 51718229746 is 64792281715.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 51718229693 and 51718229702.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 220336 + ... + 389851.

It is an arithmetic number, because the mean of its divisors is an integer number (9697412790).

Almost surely, 2^51718229746 is an apocalyptic number.

51718229746 is a deficient number, since it is larger than the sum of its proper divisors (25861072574).

51718229746 is a wasteful number, since it uses less digits than its factorization.

51718229746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652568.

The product of its digits is 1693440, while the sum is 52.

The spelling of 51718229746 in words is "fifty-one billion, seven hundred eighteen million, two hundred twenty-nine thousand, seven hundred forty-six".