5436721530 has 24 divisors (see below), whose sum is σ = 14135476212. Its totient is φ = 1449792384.

The previous prime is 5436721523. The next prime is 5436721547. The reversal of 5436721530 is 351276345.

5436721530 is a `hidden beast` number, since 5 + 43 + 67 + 21 + 530 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 4905741681 + 530979849 = 70041^2 + 23043^2 .

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30203919 + ... + 30204098.

Almost surely, 2^5436721530 is an apocalyptic number.

5436721530 is an abundant number, since it is smaller than the sum of its proper divisors (8698754682).

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

5436721530 is a wasteful number, since it uses less digits than its factorization.

5436721530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60408030 (or 60408027 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 36.

The square root of 5436721530 is about 73734.1273088656. The cubic root of 5436721530 is about 1758.3784921255.

Adding to 5436721530 its reverse (351276345), we get a palindrome (5787997875).

The spelling of 5436721530 in words is "five billion, four hundred thirty-six million, seven hundred twenty-one thousand, five hundred thirty".