51340138888606 has 16 divisors (see below), whose sum is σ = 81540449718480. Its totient is φ = 24159997468800.

The previous prime is 51340138888601. The next prime is 51340138888697. The reversal of 51340138888606 is 60688883104315.

It is a super-2 number, since 2×51340138888606² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51340138888601) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 11405905 + ... + 15256963.

It is an arithmetic number, because the mean of its divisors is an integer number (5096278107405).

Almost surely, 2^{51340138888606} is an apocalyptic number.

51340138888606 is a deficient number, since it is larger than the sum of its proper divisors (30200310829874).

51340138888606 is a wasteful number, since it uses less digits than its factorization.

51340138888606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4243179.

The product of its (nonzero) digits is 26542080, while the sum is 61.

The spelling of 51340138888606 in words is "fifty-one trillion, three hundred forty billion, one hundred thirty-eight million, eight hundred eighty-eight thousand, six hundred six".