51222427737 has 16 divisors (see below), whose sum is σ = 73583512128. Its totient is φ = 31507197120.

The previous prime is 51222427727. The next prime is 51222427801. The reversal of 51222427737 is 73772422215.

51222427737 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 51222427737 - 2¹⁹ = 51221903449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51222427727) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 210439 + ... + 383052.

It is an arithmetic number, because the mean of its divisors is an integer number (4598969508).

Almost surely, 2^51222427737 is an apocalyptic number.

It is an amenable number.

51222427737 is a deficient number, since it is larger than the sum of its proper divisors (22361084391).

51222427737 is a wasteful number, since it uses less digits than its factorization.

51222427737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595720.

The product of its digits is 329280, while the sum is 42.

The spelling of 51222427737 in words is "fifty-one billion, two hundred twenty-two million, four hundred twenty-seven thousand, seven hundred thirty-seven".