47478675639 has 16 divisors (see below), whose sum is σ = 64863802080. Its totient is φ = 30873354240.

The previous prime is 47478675631. The next prime is 47478675653. The reversal of 47478675639 is 93657687474.

It is not a de Polignac number, because 47478675639 - 2³ = 47478675631 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 47478675639.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47478675631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 523447 + ... + 607415.

It is an arithmetic number, because the mean of its divisors is an integer number (4053987630).

Almost surely, 2^47478675639 is an apocalyptic number.

47478675639 is a deficient number, since it is larger than the sum of its proper divisors (17385126441).

47478675639 is a wasteful number, since it uses less digits than its factorization.

47478675639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88610.

The product of its digits is 213373440, while the sum is 66.

The spelling of 47478675639 in words is "forty-seven billion, four hundred seventy-eight million, six hundred seventy-five thousand, six hundred thirty-nine".