51062489280 has 672 divisors, whose sum is σ = 206437870080. Its totient is φ = 11446026240.

The previous prime is 51062489273. The next prime is 51062489281. The reversal of 51062489280 is 8298426015.

51062489280 is a `hidden beast` number, since 5 + 10 + 624 + 8 + 9 + 2 + 8 + 0 = 666.

It is a super-2 number, since 2×51062489280² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (51062489281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 31774237 + ... + 31775843.

Almost surely, 2^51062489280 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51062489280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103218935040).

51062489280 is an abundant number, since it is smaller than the sum of its proper divisors (155375380800).

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

51062489280 is a wasteful number, since it uses less digits than its factorization.

51062489280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1717 (or 1704 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The spelling of 51062489280 in words is "fifty-one billion, sixty-two million, four hundred eighty-nine thousand, two hundred eighty".