51727621280 has 48 divisors (see below), whose sum is σ = 123288021864. Its totient is φ = 20507934720.

The previous prime is 51727621249. The next prime is 51727621313. The reversal of 51727621280 is 8212672715.

It can be written as a sum of positive squares in 4 ways, for example, as 22537215376 + 29190405904 = 150124^2 + 170852^2 .

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, 1412441 + ... + 1448600.

Almost surely, 2^51727621280 is an apocalyptic number.

It is an amenable number.

51727621280 is an abundant number, since it is smaller than the sum of its proper divisors (71560400584).

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

51727621280 is a wasteful number, since it uses less digits than its factorization.

51727621280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2861169 (or 2861161 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 41.

The spelling of 51727621280 in words is "fifty-one billion, seven hundred twenty-seven million, six hundred twenty-one thousand, two hundred eighty".