5272438986 has 64 divisors (see below), whose sum is σ = 12059942400. Its totient is φ = 1706702400.

The previous prime is 5272438981. The next prime is 5272439033. The reversal of 5272438986 is 6898342725.

5272438986 is a `hidden beast` number, since 52 + 72 + 438 + 98 + 6 = 666.

It is a super-2 number, since 2×5272438986² = 55597225722185416392, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (5272438981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 250096 + ... + 270356.

It is an arithmetic number, because the mean of its divisors is an integer number (188436600).

Almost surely, 2^5272438986 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5272438986, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6029971200).

5272438986 is an abundant number, since it is smaller than the sum of its proper divisors (6787503414).

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

5272438986 is a wasteful number, since it uses less digits than its factorization.

5272438986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20412 (or 20406 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 54.

The square root of 5272438986 is about 72611.5623437480. The cubic root of 5272438986 is about 1740.4859463177.

The spelling of 5272438986 in words is "five billion, two hundred seventy-two million, four hundred thirty-eight thousand, nine hundred eighty-six".