51340536411 has 8 divisors (see below), whose sum is σ = 68462763840. Its totient is φ = 34222666632.

The previous prime is 51340536407. The next prime is 51340536413. The reversal of 51340536411 is 11463504315.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51340536411 - 2² = 51340536407 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51340536413) 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, 1061821 + ... + 1109118.

It is an arithmetic number, because the mean of its divisors is an integer number (8557845480).

Almost surely, 2^51340536411 is an apocalyptic number.

51340536411 is a deficient number, since it is larger than the sum of its proper divisors (17122227429).

51340536411 is a wasteful number, since it uses less digits than its factorization.

51340536411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2178825.

The product of its (nonzero) digits is 21600, while the sum is 33.

The spelling of 51340536411 in words is "fifty-one billion, three hundred forty million, five hundred thirty-six thousand, four hundred eleven".