51887843318 has 48 divisors (see below), whose sum is σ = 82773645984. Its totient is φ = 24390892800.

The previous prime is 51887843303. The next prime is 51887843321. The reversal of 51887843318 is 81334878815.

51887843318 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 80197271 + ... + 80197917.

It is an arithmetic number, because the mean of its divisors is an integer number (1724450958).

Almost surely, 2^51887843318 is an apocalyptic number.

51887843318 is a deficient number, since it is larger than the sum of its proper divisors (30885802666).

51887843318 is a wasteful number, since it uses less digits than its factorization.

51887843318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1365 (or 1346 counting only the distinct ones).

The product of its digits is 5160960, while the sum is 56.

The spelling of 51887843318 in words is "fifty-one billion, eight hundred eighty-seven million, eight hundred forty-three thousand, three hundred eighteen".