28808254546 has 8 divisors (see below), whose sum is σ = 43265018124. Its totient is φ = 14386581840.

The previous prime is 28808254529. The next prime is 28808254547. The reversal of 28808254546 is 64545280882.

It can be written as a sum of positive squares in 2 ways, for example, as 25268599521 + 3539655025 = 158961^2 + 59495^2 .

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

It is a super-2 number, since 2×28808254546² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28808254493 and 28808254502.

It is not an unprimeable number, because it can be changed into a prime (28808254547) 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, 8770665 + ... + 8773948.

Almost surely, 2^28808254546 is an apocalyptic number.

28808254546 is a deficient number, since it is larger than the sum of its proper divisors (14456763578).

28808254546 is a wasteful number, since it uses less digits than its factorization.

28808254546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17545436.

The product of its (nonzero) digits is 4915200, while the sum is 52.

The spelling of 28808254546 in words is "twenty-eight billion, eight hundred eight million, two hundred fifty-four thousand, five hundred forty-six".