51061065117 has 8 divisors (see below), whose sum is σ = 68097333024. Its totient is φ = 34032753648.

The previous prime is 51061065109. The next prime is 51061065149. The reversal of 51061065117 is 71156016015.

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

It is not a de Polignac number, because 51061065117 - 2³ = 51061065109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51061065157) 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, 1974118 + ... + 1999815.

It is an arithmetic number, because the mean of its divisors is an integer number (8512166628).

Almost surely, 2^51061065117 is an apocalyptic number.

It is an amenable number.

51061065117 is a deficient number, since it is larger than the sum of its proper divisors (17036267907).

51061065117 is a wasteful number, since it uses less digits than its factorization.

51061065117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3978219.

The product of its (nonzero) digits is 6300, while the sum is 33.

The spelling of 51061065117 in words is "fifty-one billion, sixty-one million, sixty-five thousand, one hundred seventeen".