5432721849 has 27 divisors (see below), whose sum is σ = 7973492709. Its totient is φ = 3564470520.

The previous prime is 5432721817. The next prime is 5432721857. The reversal of 5432721849 is 9481272345.

The square root of 5432721849 is 73707.

It is a perfect power (a square), and thus also a powerful number.

5432721849 is a `hidden beast` number, since 543 + 2 + 7 + 21 + 84 + 9 = 666.

It is not a de Polignac number, because 5432721849 - 2⁵ = 5432721817 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5432721149) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 17468404 + ... + 17468714.

Almost surely, 2^5432721849 is an apocalyptic number.

5432721849 is the 73707-th square number.

5432721849 is the 36854-th centered octagonal number.

It is an amenable number.

5432721849 is a deficient number, since it is larger than the sum of its proper divisors (2540770860).

5432721849 is an frugal number, since it uses more digits than its factorization.

5432721849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 786 (or 393 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The cubic root of 5432721849 is about 1757.9471857229.

It can be divided in two parts, 54327 and 21849, that added together give a square (76176 = 276²).

The spelling of 5432721849 in words is "five billion, four hundred thirty-two million, seven hundred twenty-one thousand, eight hundred forty-nine".