51427354069 has 16 divisors (see below), whose sum is σ = 64838995200. Its totient is φ = 39697338240.

The previous prime is 51427354057. The next prime is 51427354129. The reversal of 51427354069 is 96045372415.

It is a happy number.

It is not a de Polignac number, because 51427354069 - 2¹³ = 51427345877 is a prime.

It is a super-2 number, since 2×51427354069² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51427354009) 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, 6888169 + ... + 6895630.

It is an arithmetic number, because the mean of its divisors is an integer number (4052437200).

Almost surely, 2^51427354069 is an apocalyptic number.

It is an amenable number.

51427354069 is a deficient number, since it is larger than the sum of its proper divisors (13411641131).

51427354069 is a wasteful number, since it uses less digits than its factorization.

51427354069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13783860.

The product of its (nonzero) digits is 907200, while the sum is 46.

The spelling of 51427354069 in words is "fifty-one billion, four hundred twenty-seven million, three hundred fifty-four thousand, sixty-nine".