51880079849 has 24 divisors (see below), whose sum is σ = 56999990880. Its totient is φ = 47191427712.

The previous prime is 51880079687. The next prime is 51880079869. The reversal of 51880079849 is 94897008815.

It is a de Polignac number, because none of the positive numbers 2^k-51880079849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51880079869) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5732522 + ... + 5741564.

It is an arithmetic number, because the mean of its divisors is an integer number (2374999620).

Almost surely, 2^51880079849 is an apocalyptic number.

It is an amenable number.

51880079849 is a deficient number, since it is larger than the sum of its proper divisors (5119911031).

51880079849 is a wasteful number, since it uses less digits than its factorization.

51880079849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9561 (or 9548 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 59.

The spelling of 51880079849 in words is "fifty-one billion, eight hundred eighty million, seventy-nine thousand, eight hundred forty-nine".