28432338737 has 8 divisors (see below), whose sum is σ = 31045230720. Its totient is φ = 25824135760.

The previous prime is 28432338733. The next prime is 28432338749. The reversal of 28432338737 is 73783323482.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28432338737 - 2² = 28432338733 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28432338731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1159562 + ... + 1183827.

It is an arithmetic number, because the mean of its divisors is an integer number (3880653840).

Almost surely, 2^28432338737 is an apocalyptic number.

It is an amenable number.

28432338737 is a deficient number, since it is larger than the sum of its proper divisors (2612891983).

28432338737 is a wasteful number, since it uses less digits than its factorization.

28432338737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2344503.

The product of its digits is 4064256, while the sum is 50.

The spelling of 28432338737 in words is "twenty-eight billion, four hundred thirty-two million, three hundred thirty-eight thousand, seven hundred thirty-seven".