51527226018 has 16 divisors (see below), whose sum is σ = 103086406080. Its totient is φ = 17170416336.

The previous prime is 51527226007. The next prime is 51527226019. The reversal of 51527226018 is 81062272515.

It is a super-2 number, since 2×51527226018² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51527226019) by changing a digit.

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, 1310430 + ... + 1349177.

It is an arithmetic number, because the mean of its divisors is an integer number (6442900380).

Almost surely, 2^51527226018 is an apocalyptic number.

51527226018 is an abundant number, since it is smaller than the sum of its proper divisors (51559180062).

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

51527226018 is a wasteful number, since it uses less digits than its factorization.

51527226018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2662841.

The product of its (nonzero) digits is 67200, while the sum is 39.

The spelling of 51527226018 in words is "fifty-one billion, five hundred twenty-seven million, two hundred twenty-six thousand, eighteen".