51195383068 has 12 divisors (see below), whose sum is σ = 90429228792. Its totient is φ = 25358460560.

The previous prime is 51195383059. The next prime is 51195383087. The reversal of 51195383068 is 86038359115.

It is a super-2 number, since 2×51195383068² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59807263 + ... + 59808118.

It is an arithmetic number, because the mean of its divisors is an integer number (7535769066).

Almost surely, 2^51195383068 is an apocalyptic number.

It is an amenable number.

51195383068 is a deficient number, since it is larger than the sum of its proper divisors (39233845724).

51195383068 is a wasteful number, since it uses less digits than its factorization.

51195383068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119615492 (or 119615490 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 49.

The spelling of 51195383068 in words is "fifty-one billion, one hundred ninety-five million, three hundred eighty-three thousand, sixty-eight".