51271219810 has 16 divisors (see below), whose sum is σ = 96300726336. Its totient is φ = 19616814448.

The previous prime is 51271219801. The next prime is 51271219873. The reversal of 51271219810 is 1891217215.

It is a super-2 number, since 2×51271219810² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51271219810.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111458944 + ... + 111459403.

It is an arithmetic number, because the mean of its divisors is an integer number (6018795396).

Almost surely, 2^51271219810 is an apocalyptic number.

51271219810 is a deficient number, since it is larger than the sum of its proper divisors (45029506526).

51271219810 is a wasteful number, since it uses less digits than its factorization.

51271219810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222918377.

The product of its (nonzero) digits is 10080, while the sum is 37.

The spelling of 51271219810 in words is "fifty-one billion, two hundred seventy-one million, two hundred nineteen thousand, eight hundred ten".