28306507551632 has 40 divisors (see below), whose sum is σ = 58819629677760. Its totient is φ = 13155358020480.

The previous prime is 28306507551611. The next prime is 28306507551703. The reversal of 28306507551632 is 23615570560382.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 878413244 + ... + 878445467.

It is an arithmetic number, because the mean of its divisors is an integer number (1470490741944).

Almost surely, 2^{28306507551632} is an apocalyptic number.

It is an amenable number.

28306507551632 is an abundant number, since it is smaller than the sum of its proper divisors (30513122126128).

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

28306507551632 is a wasteful number, since it uses less digits than its factorization.

28306507551632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1756858791 (or 1756858785 counting only the distinct ones).

The product of its (nonzero) digits is 9072000, while the sum is 53.

The spelling of 28306507551632 in words is "twenty-eight trillion, three hundred six billion, five hundred seven million, five hundred fifty-one thousand, six hundred thirty-two".