51481271876 has 24 divisors (see below), whose sum is σ = 90662229504. Its totient is φ = 25578241920.

The previous prime is 51481271867. The next prime is 51481271879. The reversal of 51481271876 is 67817218415.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (51481271879) 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, 388661 + ... + 504003.

It is an arithmetic number, because the mean of its divisors is an integer number (3777592896).

Almost surely, 2^51481271876 is an apocalyptic number.

It is an amenable number.

51481271876 is a deficient number, since it is larger than the sum of its proper divisors (39180957628).

51481271876 is a wasteful number, since it uses less digits than its factorization.

51481271876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116051 (or 116049 counting only the distinct ones).

The product of its digits is 752640, while the sum is 50.

The spelling of 51481271876 in words is "fifty-one billion, four hundred eighty-one million, two hundred seventy-one thousand, eight hundred seventy-six".