47451652221 has 8 divisors (see below), whose sum is σ = 63275507424. Its totient is φ = 31631115920.

The previous prime is 47451652189. The next prime is 47451652247. The reversal of 47451652221 is 12225615474.

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 47451652221 - 2⁵ = 47451652189 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 47451652221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47451652321) 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 7 ways as a sum of consecutive naturals, for example, 796170 + ... + 853691.

It is an arithmetic number, because the mean of its divisors is an integer number (7909438428).

Almost surely, 2^47451652221 is an apocalyptic number.

It is an amenable number.

47451652221 is a deficient number, since it is larger than the sum of its proper divisors (15823855203).

47451652221 is a wasteful number, since it uses less digits than its factorization.

47451652221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1659451.

The product of its digits is 134400, while the sum is 39.

The spelling of 47451652221 in words is "forty-seven billion, four hundred fifty-one million, six hundred fifty-two thousand, two hundred twenty-one".