5356689493 has 4 divisors (see below), whose sum is σ = 5356838700. Its totient is φ = 5356540288.

The previous prime is 5356689487. The next prime is 5356689509. The reversal of 5356689493 is 3949866535.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 963916209 + 4392773284 = 31047^2 + 66278^2 .

It is a cyclic number.

It is not a de Polignac number, because 5356689493 - 2⁵ = 5356689461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5356609493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15621 + ... + 104677.

It is an arithmetic number, because the mean of its divisors is an integer number (1339209675).

Almost surely, 2^5356689493 is an apocalyptic number.

It is an amenable number.

5356689493 is a deficient number, since it is larger than the sum of its proper divisors (149207).

5356689493 is an equidigital number, since it uses as much as digits as its factorization.

5356689493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149206.

The product of its digits is 20995200, while the sum is 58.

The square root of 5356689493 is about 73189.4083389120. The cubic root of 5356689493 is about 1749.7076510823.

The spelling of 5356689493 in words is "five billion, three hundred fifty-six million, six hundred eighty-nine thousand, four hundred ninety-three".