47581569424 has 45 divisors (see below), whose sum is σ = 96412454859. Its totient is φ = 22746804960.

The previous prime is 47581569421. The next prime is 47581569439. The reversal of 47581569424 is 42496518574.

The square root of 47581569424 is 218132.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47581569421) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 20066959 + ... + 20069329.

Almost surely, 2^47581569424 is an apocalyptic number.

47581569424 is the 218132-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47581569424

47581569424 is an abundant number, since it is smaller than the sum of its proper divisors (48830885435).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47581569424 is an frugal number, since it uses more digits than its factorization.

47581569424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4796 (or 2396 counting only the distinct ones).

The product of its digits is 9676800, while the sum is 55.

The spelling of 47581569424 in words is "forty-seven billion, five hundred eighty-one million, five hundred sixty-nine thousand, four hundred twenty-four".