28323116132 has 6 divisors (see below), whose sum is σ = 49565453238. Its totient is φ = 14161558064.

The previous prime is 28323116123. The next prime is 28323116149. The reversal of 28323116132 is 23161132382.

It can be written as a sum of positive squares in only one way, i.e., 20270925376 + 8052190756 = 142376^2 + 89734^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3540389513 + ... + 3540389520.

It is an arithmetic number, because the mean of its divisors is an integer number (8260908873).

Almost surely, 2^28323116132 is an apocalyptic number.

It is an amenable number.

28323116132 is a deficient number, since it is larger than the sum of its proper divisors (21242337106).

28323116132 is a wasteful number, since it uses less digits than its factorization.

28323116132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7080779037 (or 7080779035 counting only the distinct ones).

The product of its digits is 10368, while the sum is 32.

The spelling of 28323116132 in words is "twenty-eight billion, three hundred twenty-three million, one hundred sixteen thousand, one hundred thirty-two".