47149345321 has 9 divisors (see below), whose sum is σ = 51058265079. Its totient is φ = 43519866936.

The previous prime is 47149345289. The next prime is 47149345387. The reversal of 47149345321 is 12354394174.

The square root of 47149345321 is 217139.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 6974755225 + 40174590096 = 83515^2 + 200436^2 .

It is not a de Polignac number, because 47149345321 - 2⁵ = 47149345289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47149345721) 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 8 ways as a sum of consecutive naturals, for example, 2814456 + ... + 2831158.

Almost surely, 2^47149345321 is an apocalyptic number.

47149345321 is the 217139-th square number.

47149345321 is the 108570-th centered octagonal number.

It is an amenable number.

47149345321 is a deficient number, since it is larger than the sum of its proper divisors (3908919758).

47149345321 is an frugal number, since it uses more digits than its factorization.

47149345321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33432 (or 16716 counting only the distinct ones).

The product of its digits is 362880, while the sum is 43.

The spelling of 47149345321 in words is "forty-seven billion, one hundred forty-nine million, three hundred forty-five thousand, three hundred twenty-one".