47404721193 has 4 divisors (see below), whose sum is σ = 63206294928. Its totient is φ = 31603147460.

The previous prime is 47404721149. The next prime is 47404721207. The reversal of 47404721193 is 39112740474.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 47404721193 - 2¹³ = 47404713001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47404721993) 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, 7900786863 + ... + 7900786868.

It is an arithmetic number, because the mean of its divisors is an integer number (15801573732).

Almost surely, 2^47404721193 is an apocalyptic number.

It is an amenable number.

47404721193 is a deficient number, since it is larger than the sum of its proper divisors (15801573735).

47404721193 is a wasteful number, since it uses less digits than its factorization.

47404721193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15801573734.

The product of its (nonzero) digits is 169344, while the sum is 42.

The spelling of 47404721193 in words is "forty-seven billion, four hundred four million, seven hundred twenty-one thousand, one hundred ninety-three".