28318667700 has 36 divisors (see below), whose sum is σ = 81935346080. Its totient is φ = 7551644640.

The previous prime is 28318667669. The next prime is 28318667731. The reversal of 28318667700 is 776681382.

It is an interprime number because it is at equal distance from previous prime (28318667669) and next prime (28318667731).

It is a self number, because there is not a number n which added to its sum of digits gives 28318667700.

It is a congruent number.

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, 47197480 + ... + 47198079.

Almost surely, 2^28318667700 is an apocalyptic number.

28318667700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28318667700 is an abundant number, since it is smaller than the sum of its proper divisors (53616678380).

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

28318667700 is a wasteful number, since it uses less digits than its factorization.

28318667700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94395576 (or 94395569 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 48.

The spelling of 28318667700 in words is "twenty-eight billion, three hundred eighteen million, six hundred sixty-seven thousand, seven hundred".