51663388574043 has 6 divisors (see below), whose sum is σ = 74624894606964. Its totient is φ = 34442259049356.

The previous prime is 51663388574029. The next prime is 51663388574051. The reversal of 51663388574043 is 34047588336615.

51663388574043 is a `hidden beast` number, since 5 + 16 + 6 + 3 + 3 + 8 + 8 + 574 + 0 + 43 = 666.

It is not a de Polignac number, because 51663388574043 - 2³⁷ = 51525949620571 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51663388574003) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2870188254105 + ... + 2870188254122.

It is an arithmetic number, because the mean of its divisors is an integer number (12437482434494).

Almost surely, 2^{51663388574043} is an apocalyptic number.

51663388574043 is a deficient number, since it is larger than the sum of its proper divisors (22961506032921).

51663388574043 is a wasteful number, since it uses less digits than its factorization.

51663388574043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5740376508233 (or 5740376508230 counting only the distinct ones).

The product of its (nonzero) digits is 174182400, while the sum is 63.

The spelling of 51663388574043 in words is "fifty-one trillion, six hundred sixty-three billion, three hundred eighty-eight million, five hundred seventy-four thousand, forty-three".