5493638865 has 32 divisors (see below), whose sum is σ = 10326508416. Its totient is φ = 2458690560.

The previous prime is 5493638789. The next prime is 5493638869. The reversal of 5493638865 is 5688363945.

It is a happy number.

5493638865 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 5493638865 - 2¹¹ = 5493636817 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5493638869) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1278424 + ... + 1282713.

It is an arithmetic number, because the mean of its divisors is an integer number (322703388).

Almost surely, 2^5493638865 is an apocalyptic number.

5493638865 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

5493638865 is a deficient number, since it is larger than the sum of its proper divisors (4832869551).

5493638865 is a wasteful number, since it uses less digits than its factorization.

5493638865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2561169.

The product of its digits is 18662400, while the sum is 57.

The square root of 5493638865 is about 74119.0856999734. The cubic root of 5493638865 is about 1764.4933893106.

The spelling of 5493638865 in words is "five billion, four hundred ninety-three million, six hundred thirty-eight thousand, eight hundred sixty-five".