51618541274 has 16 divisors (see below), whose sum is σ = 77589705600. Its totient is φ = 25755336000.

The previous prime is 51618541259. The next prime is 51618541279. The reversal of 51618541274 is 47214581615.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (51618541279) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 5344802 + ... + 5354450.

It is an arithmetic number, because the mean of its divisors is an integer number (4849356600).

Almost surely, 2^51618541274 is an apocalyptic number.

51618541274 is a deficient number, since it is larger than the sum of its proper divisors (25971164326).

51618541274 is a wasteful number, since it uses less digits than its factorization.

51618541274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14965.

The product of its digits is 268800, while the sum is 44.

The spelling of 51618541274 in words is "fifty-one billion, six hundred eighteen million, five hundred forty-one thousand, two hundred seventy-four".