47747623447 has 8 divisors (see below), whose sum is σ = 50758288560. Its totient is φ = 44786721600.

The previous prime is 47747623411. The next prime is 47747623481. The reversal of 47747623447 is 74432674774.

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 47747623447 - 2¹¹ = 47747621399 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 (47747623247) 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, 12438838 + ... + 12442675.

It is an arithmetic number, because the mean of its divisors is an integer number (6344786070).

Almost surely, 2^47747623447 is an apocalyptic number.

47747623447 is a deficient number, since it is larger than the sum of its proper divisors (3010665113).

47747623447 is a wasteful number, since it uses less digits than its factorization.

47747623447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24881633.

The product of its digits is 22127616, while the sum is 55.

The spelling of 47747623447 in words is "forty-seven billion, seven hundred forty-seven million, six hundred twenty-three thousand, four hundred forty-seven".