51954036018 has 16 divisors (see below), whose sum is σ = 104026563840. Its totient is φ = 17298263376.

The previous prime is 51954035983. The next prime is 51954036019. The reversal of 51954036018 is 81063045915.

It is not an unprimeable number, because it can be changed into a prime (51954036019) 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, 4931458 + ... + 4941981.

It is an arithmetic number, because the mean of its divisors is an integer number (6501660240).

Almost surely, 2^51954036018 is an apocalyptic number.

51954036018 is an abundant number, since it is smaller than the sum of its proper divisors (52072527822).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51954036018 is a wasteful number, since it uses less digits than its factorization.

51954036018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9874321.

The product of its (nonzero) digits is 129600, while the sum is 42.

The spelling of 51954036018 in words is "fifty-one billion, nine hundred fifty-four million, thirty-six thousand, eighteen".