47894516069 has 2 divisors, whose sum is σ = 47894516070. Its totient is φ = 47894516068.

The previous prime is 47894516051. The next prime is 47894516101. The reversal of 47894516069 is 96061549874.

47894516069 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46639585444 + 1254930625 = 215962^2 + 35425^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47894516069 is a prime.

It is a super-4 number, since 4×47894516069⁴ (a number of 44 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 47894515999 and 47894516017.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47894516269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23947258034 + 23947258035.

It is an arithmetic number, because the mean of its divisors is an integer number (23947258035).

Almost surely, 2^47894516069 is an apocalyptic number.

It is an amenable number.

47894516069 is a deficient number, since it is larger than the sum of its proper divisors (1).

47894516069 is an equidigital number, since it uses as much as digits as its factorization.

47894516069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13063680, while the sum is 59.

The spelling of 47894516069 in words is "forty-seven billion, eight hundred ninety-four million, five hundred sixteen thousand, sixty-nine".