51332856218 has 8 divisors (see below), whose sum is σ = 87999182112. Its totient is φ = 21999795516.

The previous prime is 51332856193. The next prime is 51332856233. The reversal of 51332856218 is 81265823315.

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

It is a super-2 number, since 2×51332856218² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1833316280 + ... + 1833316307.

It is an arithmetic number, because the mean of its divisors is an integer number (10999897764).

Almost surely, 2^51332856218 is an apocalyptic number.

51332856218 is a deficient number, since it is larger than the sum of its proper divisors (36666325894).

51332856218 is a wasteful number, since it uses less digits than its factorization.

51332856218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3666632596.

The product of its digits is 345600, while the sum is 44.

The spelling of 51332856218 in words is "fifty-one billion, three hundred thirty-two million, eight hundred fifty-six thousand, two hundred eighteen".