51718454522 has 16 divisors (see below), whose sum is σ = 89110264320. Its totient is φ = 22052537808.

The previous prime is 51718454413. The next prime is 51718454539. The reversal of 51718454522 is 22545481715.

It is a happy number.

It is a super-3 number, since 3×51718454522³ (a number of 33 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9373322 + ... + 9378837.

It is an arithmetic number, because the mean of its divisors is an integer number (5569391520).

Almost surely, 2^51718454522 is an apocalyptic number.

51718454522 is a deficient number, since it is larger than the sum of its proper divisors (37391809798).

51718454522 is a wasteful number, since it uses less digits than its factorization.

51718454522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18752365.

The product of its digits is 448000, while the sum is 44.

The spelling of 51718454522 in words is "fifty-one billion, seven hundred eighteen million, four hundred fifty-four thousand, five hundred twenty-two".