51739049760 has 96 divisors (see below), whose sum is σ = 163060128000. Its totient is φ = 13790128128.

The previous prime is 51739049759. The next prime is 51739049767. The reversal of 51739049760 is 6794093715.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (51739049767) 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 15 ways as a sum of consecutive naturals, for example, 964116 + ... + 1016364.

It is an arithmetic number, because the mean of its divisors is an integer number (1698543000).

Almost surely, 2^51739049760 is an apocalyptic number.

It is an amenable number.

51739049760 is an abundant number, since it is smaller than the sum of its proper divisors (111321078240).

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

51739049760 is a wasteful number, since it uses less digits than its factorization.

51739049760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54330 (or 54322 counting only the distinct ones).

The product of its (nonzero) digits is 1428840, while the sum is 51.

The spelling of 51739049760 in words is "fifty-one billion, seven hundred thirty-nine million, forty-nine thousand, seven hundred sixty".