28293760008 has 48 divisors (see below), whose sum is σ = 81136521180. Its totient is φ = 8876473344.

The previous prime is 28293759983. The next prime is 28293760009. The reversal of 28293760008 is 80006739282.

28293760008 is a `hidden beast` number, since 2 + 8 + 2 + 9 + 37 + 600 + 0 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 28028786724 + 264973284 = 167418^2 + 16278^2 .

It is not an unprimeable number, because it can be changed into a prime (28293760009) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11556685 + ... + 11559132.

Almost surely, 2^28293760008 is an apocalyptic number.

It is an amenable number.

28293760008 is an abundant number, since it is smaller than the sum of its proper divisors (52842761172).

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

28293760008 is a wasteful number, since it uses less digits than its factorization.

28293760008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23115846 (or 23115839 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The spelling of 28293760008 in words is "twenty-eight billion, two hundred ninety-three million, seven hundred sixty thousand, eight".