5436947808 has 36 divisors (see below), whose sum is σ = 15461321148. Its totient is φ = 1812315840.

The previous prime is 5436947783. The next prime is 5436947809. The reversal of 5436947808 is 8087496345.

5436947808 is a `hidden beast` number, since 543 + 6 + 94 + 7 + 8 + 0 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5436947809) 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, 9438858 + ... + 9439433.

It is an arithmetic number, because the mean of its divisors is an integer number (429481143).

Almost surely, 2^5436947808 is an apocalyptic number.

It is an amenable number.

5436947808 is an abundant number, since it is smaller than the sum of its proper divisors (10024373340).

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

5436947808 is a wasteful number, since it uses less digits than its factorization.

5436947808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18878307 (or 18878296 counting only the distinct ones).

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

The square root of 5436947808 is about 73735.6617112778. The cubic root of 5436947808 is about 1758.4028865359.

The spelling of 5436947808 in words is "five billion, four hundred thirty-six million, nine hundred forty-seven thousand, eight hundred eight".