51459758111 has 4 divisors (see below), whose sum is σ = 51852580824. Its totient is φ = 51066935400.

The previous prime is 51459758069. The next prime is 51459758113. The reversal of 51459758111 is 11185795415.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51459758111 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 (51459758113) 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, 196411160 + ... + 196411421.

It is an arithmetic number, because the mean of its divisors is an integer number (12963145206).

Almost surely, 2^51459758111 is an apocalyptic number.

51459758111 is a deficient number, since it is larger than the sum of its proper divisors (392822713).

51459758111 is a wasteful number, since it uses less digits than its factorization.

51459758111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392822712.

The product of its digits is 252000, while the sum is 47.

The spelling of 51459758111 in words is "fifty-one billion, four hundred fifty-nine million, seven hundred fifty-eight thousand, one hundred eleven".