51106011774 has 16 divisors (see below), whose sum is σ = 102222398208. Its totient is φ = 17033608152.

The previous prime is 51106011709. The next prime is 51106011787. The reversal of 51106011774 is 47711060115.

It is a super-2 number, since 2×51106011774² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 367492 + ... + 487095.

It is an arithmetic number, because the mean of its divisors is an integer number (6388899888).

Almost surely, 2^51106011774 is an apocalyptic number.

51106011774 is an abundant number, since it is smaller than the sum of its proper divisors (51116386434).

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

51106011774 is a wasteful number, since it uses less digits than its factorization.

51106011774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 864559.

The product of its (nonzero) digits is 5880, while the sum is 33.

Adding to 51106011774 its reverse (47711060115), we get a palindrome (98817071889).

The spelling of 51106011774 in words is "fifty-one billion, one hundred six million, eleven thousand, seven hundred seventy-four".