51114886803571 has 4 divisors (see below), whose sum is σ = 51146813655144. Its totient is φ = 51082959952000.

The previous prime is 51114886803509. The next prime is 51114886803577. The reversal of 51114886803571 is 17530868841115.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51114886803571 - 2¹¹ = 51114886801523 is a prime.

It is a super-2 number, since 2×51114886803571² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51114886803577) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15963423385 + ... + 15963426586.

It is an arithmetic number, because the mean of its divisors is an integer number (12786703413786).

Almost surely, 2^{51114886803571} is an apocalyptic number.

51114886803571 is a deficient number, since it is larger than the sum of its proper divisors (31926851573).

51114886803571 is a wasteful number, since it uses less digits than its factorization.

51114886803571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31926851572.

The product of its (nonzero) digits is 6451200, while the sum is 58.

The spelling of 51114886803571 in words is "fifty-one trillion, one hundred fourteen billion, eight hundred eighty-six million, eight hundred three thousand, five hundred seventy-one".