51704917443 has 12 divisors (see below), whose sum is σ = 74694241440. Its totient is φ = 34465624656.

The previous prime is 51704917409. The next prime is 51704917457. The reversal of 51704917443 is 34471940715.

It is a happy number.

51704917443 is a `hidden beast` number, since 51 + 7 + 0 + 491 + 74 + 43 = 666.

51704917443 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51704917443 - 2⁹ = 51704916931 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51704917403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 283371 + ... + 428612.

It is an arithmetic number, because the mean of its divisors is an integer number (6224520120).

Almost surely, 2^51704917443 is an apocalyptic number.

51704917443 is a deficient number, since it is larger than the sum of its proper divisors (22989323997).

51704917443 is a wasteful number, since it uses less digits than its factorization.

51704917443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720058 (or 720055 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The spelling of 51704917443 in words is "fifty-one billion, seven hundred four million, nine hundred seventeen thousand, four hundred forty-three".