51271703120 has 80 divisors (see below), whose sum is σ = 130091816448. Its totient is φ = 18637355520.

The previous prime is 51271703099. The next prime is 51271703141. The reversal of 51271703120 is 2130717215.

It is an interprime number because it is at equal distance from previous prime (51271703099) and next prime (51271703141).

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2777762 + ... + 2796158.

Almost surely, 2^51271703120 is an apocalyptic number.

It is an amenable number.

51271703120 is an abundant number, since it is smaller than the sum of its proper divisors (78820113328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51271703120 is a wasteful number, since it uses less digits than its factorization.

51271703120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21588 (or 21582 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 29.

The spelling of 51271703120 in words is "fifty-one billion, two hundred seventy-one million, seven hundred three thousand, one hundred twenty".