28363793572 has 12 divisors (see below), whose sum is σ = 49923556956. Its totient is φ = 14099920160.

The previous prime is 28363793561. The next prime is 28363793587. The reversal of 28363793572 is 27539736382.

It can be written as a sum of positive squares in 2 ways, for example, as 17997295716 + 10366497856 = 134154^2 + 101816^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20493379 + ... + 20494762.

It is an arithmetic number, because the mean of its divisors is an integer number (4160296413).

Almost surely, 2^28363793572 is an apocalyptic number.

It is an amenable number.

28363793572 is a deficient number, since it is larger than the sum of its proper divisors (21559763384).

28363793572 is a wasteful number, since it uses less digits than its factorization.

28363793572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40988318 (or 40988316 counting only the distinct ones).

The product of its digits is 11430720, while the sum is 55.

The spelling of 28363793572 in words is "twenty-eight billion, three hundred sixty-three million, seven hundred ninety-three thousand, five hundred seventy-two".