47447488429 has 4 divisors (see below), whose sum is σ = 51760896480. Its totient is φ = 43134080380.

The previous prime is 47447488379. The next prime is 47447488441. The reversal of 47447488429 is 92488474474.

It is a happy number.

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 47447488429 - 2¹¹ = 47447486381 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 (47447488229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2156704009 + ... + 2156704030.

It is an arithmetic number, because the mean of its divisors is an integer number (12940224120).

Almost surely, 2^47447488429 is an apocalyptic number.

It is an amenable number.

47447488429 is a deficient number, since it is larger than the sum of its proper divisors (4313408051).

47447488429 is a wasteful number, since it uses less digits than its factorization.

47447488429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4313408050.

The product of its digits is 57802752, while the sum is 61.

The spelling of 47447488429 in words is "forty-seven billion, four hundred forty-seven million, four hundred eighty-eight thousand, four hundred twenty-nine".