28523194268 has 24 divisors (see below), whose sum is σ = 50570284800. Its totient is φ = 14074705008.

The previous prime is 28523194243. The next prime is 28523194277. The reversal of 28523194268 is 86249132582.

It is a super-2 number, since 2×28523194268² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

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, 722423 + ... + 760881.

It is an arithmetic number, because the mean of its divisors is an integer number (2107095200).

Almost surely, 2^28523194268 is an apocalyptic number.

It is an amenable number.

28523194268 is a deficient number, since it is larger than the sum of its proper divisors (22047090532).

28523194268 is a wasteful number, since it uses less digits than its factorization.

28523194268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40889 (or 40887 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 50.

The spelling of 28523194268 in words is "twenty-eight billion, five hundred twenty-three million, one hundred ninety-four thousand, two hundred sixty-eight".