51887066748 has 48 divisors (see below), whose sum is σ = 132128841600. Its totient is φ = 15717083200.

The previous prime is 51887066741. The next prime is 51887066813. The reversal of 51887066748 is 84766078815.

It is a happy number.

It is a super-2 number, since 2×51887066748² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51887066691 and 51887066700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51887066741) 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 15 ways as a sum of consecutive naturals, for example, 259363 + ... + 413573.

It is an arithmetic number, because the mean of its divisors is an integer number (2752684200).

Almost surely, 2^51887066748 is an apocalyptic number.

It is an amenable number.

51887066748 is an abundant number, since it is smaller than the sum of its proper divisors (80241774852).

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

51887066748 is a wasteful number, since it uses less digits than its factorization.

51887066748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156778 (or 156776 counting only the distinct ones).

The product of its (nonzero) digits is 18063360, while the sum is 60.

The spelling of 51887066748 in words is "fifty-one billion, eight hundred eighty-seven million, sixty-six thousand, seven hundred forty-eight".