39491472384 has 792 divisors, whose sum is σ = 147978448800. Its totient is φ = 10079354880.

The previous prime is 39491472373. The next prime is 39491472403. The reversal of 39491472384 is 48327419493.

39491472384 is a `hidden beast` number, since 3 + 9 + 4 + 91 + 472 + 3 + 84 = 666.

It is a nude number because it is divisible by every one of its digits.

Its product of digits (5225472) is a multiple of the sum of its prime divisors (56).

It is a self number, because there is not a number n which added to its sum of digits gives 39491472384.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1273918449 + ... + 1273918479.

Almost surely, 2^39491472384 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39491472384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73989224400).

39491472384 is an abundant number, since it is smaller than the sum of its proper divisors (108486976416).

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

39491472384 is a wasteful number, since it uses less digits than its factorization.

39491472384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122 (or 56 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 54.

The spelling of 39491472384 in words is "thirty-nine billion, four hundred ninety-one million, four hundred seventy-two thousand, three hundred eighty-four".