47634372009 has 81 divisors (see below), whose sum is σ = 84627695997. Its totient is φ = 25739885808.

The previous prime is 47634371969. The next prime is 47634372013. The reversal of 47634372009 is 90027343674.

The square root of 47634372009 is 218253.

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

47634372009 is a `hidden beast` number, since 4 + 7 + 6 + 3 + 437 + 200 + 9 = 666.

It is not a de Polignac number, because 47634372009 - 2⁹ = 47634371497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47634372089) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 87082674 + ... + 87083220.

Almost surely, 2^47634372009 is an apocalyptic number.

47634372009 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

47634372009 is the 218253-rd square number.

47634372009 is the 109127-th centered octagonal number.

It is an amenable number.

47634372009 is a deficient number, since it is larger than the sum of its proper divisors (36993323988).

47634372009 is an equidigital number, since it uses as much as digits as its factorization.

47634372009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1152 (or 576 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 45.

The spelling of 47634372009 in words is "forty-seven billion, six hundred thirty-four million, three hundred seventy-two thousand, nine".