51121412169 has 8 divisors (see below), whose sum is σ = 68175250080. Its totient is φ = 34074257856.

The previous prime is 51121412161. The next prime is 51121412183. The reversal of 51121412169 is 96121412115.

51121412169 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 51121412169 - 2³ = 51121412161 is a prime.

It is a super-2 number, since 2×51121412169² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51121412161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1653024 + ... + 1683665.

It is an arithmetic number, because the mean of its divisors is an integer number (8521906260).

Almost surely, 2^51121412169 is an apocalyptic number.

It is an amenable number.

51121412169 is a deficient number, since it is larger than the sum of its proper divisors (17053837911).

51121412169 is a wasteful number, since it uses less digits than its factorization.

51121412169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3341799.

The product of its digits is 4320, while the sum is 33.

The spelling of 51121412169 in words is "fifty-one billion, one hundred twenty-one million, four hundred twelve thousand, one hundred sixty-nine".