28433681700 has 36 divisors (see below), whose sum is σ = 82268119920. Its totient is φ = 7582315040.

The previous prime is 28433681663. The next prime is 28433681723. The reversal of 28433681700 is 718633482.

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, 47389170 + ... + 47389769.

Almost surely, 2^28433681700 is an apocalyptic number.

28433681700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28433681700 is an abundant number, since it is smaller than the sum of its proper divisors (53834438220).

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

28433681700 is a wasteful number, since it uses less digits than its factorization.

28433681700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94778956 (or 94778949 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 42.

The spelling of 28433681700 in words is "twenty-eight billion, four hundred thirty-three million, six hundred eighty-one thousand, seven hundred".