47474388391 has 8 divisors (see below), whose sum is σ = 47799104384. Its totient is φ = 47150484480.

The previous prime is 47474388331. The next prime is 47474388397. The reversal of 47474388391 is 19388347474.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 47474388391 - 2⁹ = 47474387879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47474388397) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85470 + ... + 319771.

It is an arithmetic number, because the mean of its divisors is an integer number (5974888048).

Almost surely, 2^47474388391 is an apocalyptic number.

47474388391 is a deficient number, since it is larger than the sum of its proper divisors (324715993).

47474388391 is a wasteful number, since it uses less digits than its factorization.

47474388391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406041.

The product of its digits is 16257024, while the sum is 58.

The spelling of 47474388391 in words is "forty-seven billion, four hundred seventy-four million, three hundred eighty-eight thousand, three hundred ninety-one".