51487602048 has 448 divisors, whose sum is σ = 163951311600. Its totient is φ = 16052649984.

The previous prime is 51487602043. The next prime is 51487602071. The reversal of 51487602048 is 84020678415.

51487602048 is a `hidden beast` number, since 51 + 487 + 60 + 20 + 48 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 51487601994 and 51487602012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51487602043) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 200340736 + ... + 200340992.

Almost surely, 2^51487602048 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 51487602048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81975655800).

51487602048 is an abundant number, since it is smaller than the sum of its proper divisors (112463709552).

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

51487602048 is a wasteful number, since it uses less digits than its factorization.

51487602048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421 (or 394 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 45.

The spelling of 51487602048 in words is "fifty-one billion, four hundred eighty-seven million, six hundred two thousand, forty-eight".