47242422021 has 8 divisors (see below), whose sum is σ = 62994554944. Its totient is φ = 31492618560.

The previous prime is 47242422013. The next prime is 47242422037. The reversal of 47242422021 is 12022424274.

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

It is not a de Polignac number, because 47242422021 - 2³ = 47242422013 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 47242422021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47242422001) 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, 534481 + ... + 616566.

It is an arithmetic number, because the mean of its divisors is an integer number (7874319368).

Almost surely, 2^47242422021 is an apocalyptic number.

It is an amenable number.

47242422021 is a deficient number, since it is larger than the sum of its proper divisors (15752132923).

47242422021 is a wasteful number, since it uses less digits than its factorization.

47242422021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1164731.

The product of its (nonzero) digits is 14336, while the sum is 30.

Adding to 47242422021 its reverse (12022424274), we get a palindrome (59264846295).

The spelling of 47242422021 in words is "forty-seven billion, two hundred forty-two million, four hundred twenty-two thousand, twenty-one".