47540407647 has 24 divisors (see below), whose sum is σ = 65614897920. Its totient is φ = 30616455600.

The previous prime is 47540407637. The next prime is 47540407723. The reversal of 47540407647 is 74670404574.

It is not a de Polignac number, because 47540407647 - 2⁶ = 47540407583 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 47540407596 and 47540407605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47540407637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1631754 + ... + 1660632.

It is an arithmetic number, because the mean of its divisors is an integer number (2733954080).

Almost surely, 2^47540407647 is an apocalyptic number.

47540407647 is a deficient number, since it is larger than the sum of its proper divisors (18074490273).

47540407647 is a wasteful number, since it uses less digits than its factorization.

47540407647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29515 (or 29484 counting only the distinct ones).

The product of its (nonzero) digits is 2634240, while the sum is 48.

The spelling of 47540407647 in words is "forty-seven billion, five hundred forty million, four hundred seven thousand, six hundred forty-seven".