28573465000 has 80 divisors (see below), whose sum is σ = 67029809220. Its totient is φ = 11415360000.

The previous prime is 28573464991. The next prime is 28573465057. The reversal of 28573465000 is 56437582.

It can be written as a sum of positive squares in 10 ways, for example, as 6380676 + 28567084324 = 2526^2 + 169018^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4701964 + ... + 4708036.

Almost surely, 2^28573465000 is an apocalyptic number.

28573465000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28573465000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33514904610).

28573465000 is an abundant number, since it is smaller than the sum of its proper divisors (38456344220).

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

28573465000 is an equidigital number, since it uses as much as digits as its factorization.

28573465000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7040 (or 7021 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 40.

The spelling of 28573465000 in words is "twenty-eight billion, five hundred seventy-three million, four hundred sixty-five thousand".