28545804730 has 16 divisors (see below), whose sum is σ = 51891187464. Its totient is φ = 11305268800.

The previous prime is 28545804713. The next prime is 28545804751. The reversal of 28545804730 is 3740854582.

It can be written as a sum of positive squares in 4 ways, for example, as 24985176489 + 3560628241 = 158067^2 + 59671^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14130577 + ... + 14132596.

Almost surely, 2^28545804730 is an apocalyptic number.

28545804730 is a deficient number, since it is larger than the sum of its proper divisors (23345382734).

28545804730 is a wasteful number, since it uses less digits than its factorization.

28545804730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28263281.

The product of its (nonzero) digits is 1075200, while the sum is 46.

The spelling of 28545804730 in words is "twenty-eight billion, five hundred forty-five million, eight hundred four thousand, seven hundred thirty".