51195842177 has 4 divisors (see below), whose sum is σ = 51196572336. Its totient is φ = 51195112020.

The previous prime is 51195842167. The next prime is 51195842189. The reversal of 51195842177 is 77124859115.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 51195842177 - 2²⁸ = 50927406721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51195842107) 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 3 ways as a sum of consecutive naturals, for example, 247223 + ... + 404364.

It is an arithmetic number, because the mean of its divisors is an integer number (12799143084).

Almost surely, 2^51195842177 is an apocalyptic number.

It is an amenable number.

51195842177 is a deficient number, since it is larger than the sum of its proper divisors (730159).

51195842177 is an equidigital number, since it uses as much as digits as its factorization.

51195842177 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730158.

The product of its digits is 705600, while the sum is 50.

The spelling of 51195842177 in words is "fifty-one billion, one hundred ninety-five million, eight hundred forty-two thousand, one hundred seventy-seven".