6536689154 has 8 divisors (see below), whose sum is σ = 9811623180. Its totient is φ = 3266148096.

The previous prime is 6536689147. The next prime is 6536689157. The reversal of 6536689154 is 4519866356.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4865760025 + 1670929129 = 69755^2 + 40877^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 6536689096 and 6536689105.

It is not an unprimeable number, because it can be changed into a prime (6536689157) 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, 1094519 + ... + 1100474.

Almost surely, 2^6536689154 is an apocalyptic number.

6536689154 is a deficient number, since it is larger than the sum of its proper divisors (3274934026).

6536689154 is a wasteful number, since it uses less digits than its factorization.

6536689154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2196484.

The product of its digits is 4665600, while the sum is 53.

The square root of 6536689154 is about 80849.7937783393. The cubic root of 6536689154 is about 1869.7603431421.

The spelling of 6536689154 in words is "six billion, five hundred thirty-six million, six hundred eighty-nine thousand, one hundred fifty-four".