51840413311 has 4 divisors (see below), whose sum is σ = 53628013800. Its totient is φ = 50052812824.

The previous prime is 51840413293. The next prime is 51840413323. The reversal of 51840413311 is 11331404815.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51840413311 - 2¹¹ = 51840411263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51840413341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 893800201 + ... + 893800258.

It is an arithmetic number, because the mean of its divisors is an integer number (13407003450).

Almost surely, 2^51840413311 is an apocalyptic number.

51840413311 is a deficient number, since it is larger than the sum of its proper divisors (1787600489).

51840413311 is a wasteful number, since it uses less digits than its factorization.

51840413311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1787600488.

The product of its (nonzero) digits is 5760, while the sum is 31.

The spelling of 51840413311 in words is "fifty-one billion, eight hundred forty million, four hundred thirteen thousand, three hundred eleven".