28315871300 has 36 divisors (see below), whose sum is σ = 61453397460. Its totient is φ = 11324881920.

The previous prime is 28315871191. The next prime is 28315871321. The reversal of 28315871300 is 317851382.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 112699456 + 28203171844 = 10616^2 + 167938^2 .

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, 1092896 + ... + 1118504.

Almost surely, 2^28315871300 is an apocalyptic number.

28315871300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28315871300 is an abundant number, since it is smaller than the sum of its proper divisors (33137526160).

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

28315871300 is a wasteful number, since it uses less digits than its factorization.

28315871300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36680 (or 36673 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 38.

The spelling of 28315871300 in words is "twenty-eight billion, three hundred fifteen million, eight hundred seventy-one thousand, three hundred".