47978029824 has 72 divisors (see below), whose sum is σ = 127728088320. Its totient is φ = 15988098048.

The previous prime is 47978029823. The next prime is 47978029849. The reversal of 47978029824 is 42892087974.

It is not an unprimeable number, because it can be changed into a prime (47978029823) 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, 3648349 + ... + 3661475.

Almost surely, 2^47978029824 is an apocalyptic number.

It is an amenable number.

47978029824 is an abundant number, since it is smaller than the sum of its proper divisors (79750058496).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47978029824 is a wasteful number, since it uses less digits than its factorization.

47978029824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17905 (or 17891 counting only the distinct ones).

The product of its (nonzero) digits is 16257024, while the sum is 60.

The spelling of 47978029824 in words is "forty-seven billion, nine hundred seventy-eight million, twenty-nine thousand, eight hundred twenty-four".