51071150117 has 8 divisors (see below), whose sum is σ = 58234976856. Its totient is φ = 44369505792.

The previous prime is 51071150077. The next prime is 51071150159. The reversal of 51071150117 is 71105117015.

It can be written as a sum of positive squares in 4 ways, for example, as 11861605921 + 39209544196 = 108911^2 + 198014^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 51071150117 - 2⁸ = 51071149861 is a prime.

It is a super-2 number, since 2×51071150117² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51071150117.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51071150197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115545368 + ... + 115545809.

It is an arithmetic number, because the mean of its divisors is an integer number (7279372107).

Almost surely, 2^51071150117 is an apocalyptic number.

It is an amenable number.

51071150117 is a deficient number, since it is larger than the sum of its proper divisors (7163826739).

51071150117 is a wasteful number, since it uses less digits than its factorization.

51071150117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231091207.

The product of its (nonzero) digits is 1225, while the sum is 29.

The spelling of 51071150117 in words is "fifty-one billion, seventy-one million, one hundred fifty thousand, one hundred seventeen".