28795765450 has 24 divisors (see below), whose sum is σ = 53642206188. Its totient is φ = 11500654080.

The previous prime is 28795765433. The next prime is 28795765541. The reversal of 28795765450 is 5456759782.

It can be written as a sum of positive squares in 6 ways, for example, as 906431449 + 27889334001 = 30107^2 + 167001^2 .

It is a super-2 number, since 2×28795765450² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 408327 + ... + 473626.

Almost surely, 2^28795765450 is an apocalyptic number.

28795765450 is a deficient number, since it is larger than the sum of its proper divisors (24846440738).

28795765450 is a wasteful number, since it uses less digits than its factorization.

28795765450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 882618 (or 882613 counting only the distinct ones).

The product of its (nonzero) digits is 21168000, while the sum is 58.

The spelling of 28795765450 in words is "twenty-eight billion, seven hundred ninety-five million, seven hundred sixty-five thousand, four hundred fifty".