51444271850 has 24 divisors (see below), whose sum is σ = 96615348960. Its totient is φ = 20377923120.

The previous prime is 51444271847. The next prime is 51444271913. The reversal of 51444271850 is 5817244415.

It is a junction number, because it is equal to n+sod(n) for n = 51444271798 and 51444271807.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4989440 + ... + 4999739.

It is an arithmetic number, because the mean of its divisors is an integer number (4025639540).

Almost surely, 2^51444271850 is an apocalyptic number.

51444271850 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51444271850 is a deficient number, since it is larger than the sum of its proper divisors (45171077110).

51444271850 is a wasteful number, since it uses less digits than its factorization.

51444271850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9989294 (or 9989289 counting only the distinct ones).

The product of its (nonzero) digits is 179200, while the sum is 41.

The spelling of 51444271850 in words is "fifty-one billion, four hundred forty-four million, two hundred seventy-one thousand, eight hundred fifty".