51451748568 has 96 divisors (see below), whose sum is σ = 154508749200. Its totient is φ = 15335827200.

The previous prime is 51451748567. The next prime is 51451748591. The reversal of 51451748568 is 86584715415.

51451748568 is a `hidden beast` number, since 5 + 1 + 4 + 5 + 1 + 74 + 8 + 568 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51451748567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 484183 + ... + 580806.

Almost surely, 2^51451748568 is an apocalyptic number.

It is an amenable number.

51451748568 is an abundant number, since it is smaller than the sum of its proper divisors (103057000632).

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

51451748568 is a wasteful number, since it uses less digits than its factorization.

51451748568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1065073 (or 1065066 counting only the distinct ones).

The product of its digits is 5376000, while the sum is 54.

The spelling of 51451748568 in words is "fifty-one billion, four hundred fifty-one million, seven hundred forty-eight thousand, five hundred sixty-eight".