51067705917 has 16 divisors (see below), whose sum is σ = 72105638400. Its totient is φ = 32038013952.

The previous prime is 51067705907. The next prime is 51067705921. The reversal of 51067705917 is 71950776015.

It is not a de Polignac number, because 51067705917 - 2⁷ = 51067705789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51067705907) 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, 320709 + ... + 452757.

It is an arithmetic number, because the mean of its divisors is an integer number (4506602400).

Almost surely, 2^51067705917 is an apocalyptic number.

It is an amenable number.

51067705917 is a deficient number, since it is larger than the sum of its proper divisors (21037932483).

51067705917 is a wasteful number, since it uses less digits than its factorization.

51067705917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139652.

The product of its (nonzero) digits is 463050, while the sum is 48.

The spelling of 51067705917 in words is "fifty-one billion, sixty-seven million, seven hundred five thousand, nine hundred seventeen".