5436921807 has 12 divisors (see below), whose sum is σ = 7854020824. Its totient is φ = 3624296400.

The previous prime is 5436921797. The next prime is 5436921817. The reversal of 5436921807 is 7081296345.

5436921807 is a `hidden beast` number, since 543 + 6 + 9 + 21 + 80 + 7 = 666.

5436921807 is digitally balanced in base 10, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (5436921797) and next prime (5436921817).

It is not a de Polignac number, because 5436921807 - 2⁸ = 5436921551 is a prime.

It is a Duffinian number.

5436921807 is strictly pandigital in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5436921817) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 130932 + ... + 167382.

It is a 1-persistent number, because it is pandigital, but 2⋅5436921807 = 10873843614 is not.

Almost surely, 2^5436921807 is an apocalyptic number.

5436921807 is a deficient number, since it is larger than the sum of its proper divisors (2417099017).

5436921807 is a wasteful number, since it uses less digits than its factorization.

5436921807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53030 (or 53027 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 5436921807 is about 73735.4853988227. The cubic root of 5436921807 is about 1758.4000834738.

It can be divided in two parts, 54369 and 21807, that added together give a square (76176 = 276²).

The spelling of 5436921807 in words is "five billion, four hundred thirty-six million, nine hundred twenty-one thousand, eight hundred seven".