51121441105 has 16 divisors (see below), whose sum is σ = 70125143040. Its totient is φ = 35046833472.

The previous prime is 51121441093. The next prime is 51121441121. The reversal of 51121441105 is 50114412115.

It is a happy number.

51121441105 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51121441105 - 2⁷ = 51121440977 is a prime.

It is a super-2 number, since 2×51121441105² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51121441105.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3585 + ... + 319774.

It is an arithmetic number, because the mean of its divisors is an integer number (4382821440).

Almost surely, 2^51121441105 is an apocalyptic number.

It is an amenable number.

51121441105 is a deficient number, since it is larger than the sum of its proper divisors (19003701935).

51121441105 is a wasteful number, since it uses less digits than its factorization.

51121441105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327888.

The product of its (nonzero) digits is 800, while the sum is 25.

The spelling of 51121441105 in words is "fifty-one billion, one hundred twenty-one million, four hundred forty-one thousand, one hundred five".