47537904447 has 24 divisors (see below), whose sum is σ = 75130545360. Its totient is φ = 28725338880.

The previous prime is 47537904443. The next prime is 47537904497. The reversal of 47537904447 is 74440973574.

It is a happy number.

47537904447 is a `hidden beast` number, since 475 + 3 + 7 + 90 + 44 + 47 = 666.

It is not a de Polignac number, because 47537904447 - 2² = 47537904443 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 47537904393 and 47537904402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47537904443) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 679072 + ... + 745797.

It is an arithmetic number, because the mean of its divisors is an integer number (3130439390).

Almost surely, 2^47537904447 is an apocalyptic number.

47537904447 is a deficient number, since it is larger than the sum of its proper divisors (27592640913).

47537904447 is a wasteful number, since it uses less digits than its factorization.

47537904447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1425223 (or 1425220 counting only the distinct ones).

The product of its (nonzero) digits is 11854080, while the sum is 54.

The spelling of 47537904447 in words is "forty-seven billion, five hundred thirty-seven million, nine hundred four thousand, four hundred forty-seven".