51933436181998 has 32 divisors (see below), whose sum is σ = 89046588708864. Its totient is φ = 22252727267232.

The previous prime is 51933436181987. The next prime is 51933436182049. The reversal of 51933436181998 is 89918163433915.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2731460340 + ... + 2731479352.

It is an arithmetic number, because the mean of its divisors is an integer number (2782705897152).

Almost surely, 2^{51933436181998} is an apocalyptic number.

51933436181998 is a deficient number, since it is larger than the sum of its proper divisors (37113152526866).

51933436181998 is a wasteful number, since it uses less digits than its factorization.

51933436181998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47856.

The product of its digits is 151165440, while the sum is 70.

The spelling of 51933436181998 in words is "fifty-one trillion, nine hundred thirty-three billion, four hundred thirty-six million, one hundred eighty-one thousand, nine hundred ninety-eight".