47165866393 has 4 divisors (see below), whose sum is σ = 49940329140. Its totient is φ = 44391403648.

The previous prime is 47165866387. The next prime is 47165866409. The reversal of 47165866393 is 39366856174.

It is a happy number.

47165866393 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 35604670864 + 11561195529 = 188692^2 + 107523^2 .

It is a cyclic number.

It is not a de Polignac number, because 47165866393 - 2¹⁷ = 47165735321 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (47165866373) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1387231348 + ... + 1387231381.

It is an arithmetic number, because the mean of its divisors is an integer number (12485082285).

Almost surely, 2^47165866393 is an apocalyptic number.

It is an amenable number.

47165866393 is a deficient number, since it is larger than the sum of its proper divisors (2774462747).

47165866393 is a wasteful number, since it uses less digits than its factorization.

47165866393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2774462746.

The product of its digits is 19595520, while the sum is 58.

The spelling of 47165866393 in words is "forty-seven billion, one hundred sixty-five million, eight hundred sixty-six thousand, three hundred ninety-three".