5149831872 has 42 divisors (see below), whose sum is σ = 13628228268. Its totient is φ = 1716279168.

The previous prime is 5149831871. The next prime is 5149831903. The reversal of 5149831872 is 2781389415.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (5149831871) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 991779 + ... + 996957.

Almost surely, 2^5149831872 is an apocalyptic number.

It is an amenable number.

5149831872 is an abundant number, since it is smaller than the sum of its proper divisors (8478396396).

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

5149831872 is an frugal number, since it uses more digits than its factorization.

5149831872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10373 (or 5184 counting only the distinct ones).

The product of its digits is 483840, while the sum is 48.

The square root of 5149831872 is about 71762.3290591937. The cubic root of 5149831872 is about 1726.8887102000. Note that the first 3 decimals are identical.

Multiplying 5149831872 by its sum of digits (48), we get a square (247191929856 = 497184²).

5149831872 divided by its sum of digits (48) gives a square (107288164 = 10358²).

The spelling of 5149831872 in words is "five billion, one hundred forty-nine million, eight hundred thirty-one thousand, eight hundred seventy-two".