51744184728 has 64 divisors (see below), whose sum is σ = 133892352000. Its totient is φ = 16644442752.

The previous prime is 51744184711. The next prime is 51744184729. The reversal of 51744184728 is 82748144715.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51744184729) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1358601 + ... + 1396167.

It is an arithmetic number, because the mean of its divisors is an integer number (2092068000).

Almost surely, 2^51744184728 is an apocalyptic number.

51744184728 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

It is an amenable number.

51744184728 is an abundant number, since it is smaller than the sum of its proper divisors (82148167272).

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

51744184728 is a wasteful number, since it uses less digits than its factorization.

51744184728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39584 (or 39580 counting only the distinct ones).

The product of its digits is 2007040, while the sum is 51.

The spelling of 51744184728 in words is "fifty-one billion, seven hundred forty-four million, one hundred eighty-four thousand, seven hundred twenty-eight".