51171197151 has 8 divisors (see below), whose sum is σ = 68719114240. Its totient is φ = 33868705752.

The previous prime is 51171197113. The next prime is 51171197183. The reversal of 51171197151 is 15179117115.

51171197151 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 51171197151 - 2⁹ = 51171196639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51171197951) 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, 61355935 + ... + 61356768.

It is an arithmetic number, because the mean of its divisors is an integer number (8589889280).

Almost surely, 2^51171197151 is an apocalyptic number.

51171197151 is a deficient number, since it is larger than the sum of its proper divisors (17547917089).

51171197151 is a wasteful number, since it uses less digits than its factorization.

51171197151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122712845.

The product of its digits is 11025, while the sum is 39.

The spelling of 51171197151 in words is "fifty-one billion, one hundred seventy-one million, one hundred ninety-seven thousand, one hundred fifty-one".