28317733072 has 10 divisors (see below), whose sum is σ = 54865607858. Its totient is φ = 14158866528.

The previous prime is 28317733049. The next prime is 28317733127. The reversal of 28317733072 is 27033771382.

It can be written as a sum of positive squares in only one way, i.e., 18440553616 + 9877179456 = 135796^2 + 99384^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 884929143 + ... + 884929174.

Almost surely, 2^28317733072 is an apocalyptic number.

It is an amenable number.

28317733072 is a deficient number, since it is larger than the sum of its proper divisors (26547874786).

28317733072 is a wasteful number, since it uses less digits than its factorization.

28317733072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1769858325 (or 1769858319 counting only the distinct ones).

The product of its (nonzero) digits is 296352, while the sum is 43.

The spelling of 28317733072 in words is "twenty-eight billion, three hundred seventeen million, seven hundred thirty-three thousand, seventy-two".