47899578493 has 24 divisors (see below), whose sum is σ = 54683058528. Its totient is φ = 41702434848.

The previous prime is 47899578409. The next prime is 47899578497. The reversal of 47899578493 is 39487599874.

It is not a de Polignac number, because 47899578493 - 2²¹ = 47897481341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47899578497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1042830 + ... + 1087792.

It is an arithmetic number, because the mean of its divisors is an integer number (2278460772).

Almost surely, 2^47899578493 is an apocalyptic number.

It is an amenable number.

47899578493 is a deficient number, since it is larger than the sum of its proper divisors (6783480035).

47899578493 is a wasteful number, since it uses less digits than its factorization.

47899578493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45241 (or 45222 counting only the distinct ones).

The product of its digits is 548674560, while the sum is 73.

The spelling of 47899578493 in words is "forty-seven billion, eight hundred ninety-nine million, five hundred seventy-eight thousand, four hundred ninety-three".