28923992600238 has 40 divisors (see below), whose sum is σ = 64815445592568. Its totient is φ = 9640694620656.

The previous prime is 28923992600227. The next prime is 28923992600263. The reversal of 28923992600238 is 83200629932982.

28923992600238 is a `hidden beast` number, since 2 + 8 + 9 + 2 + 399 + 2 + 6 + 0 + 0 + 238 = 666.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3425556 + ... + 8341607.

Almost surely, 2^{28923992600238} is an apocalyptic number.

28923992600238 is an abundant number, since it is smaller than the sum of its proper divisors (35891452992330).

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

28923992600238 is a wasteful number, since it uses less digits than its factorization.

28923992600238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11782350 (or 11782341 counting only the distinct ones).

The product of its (nonzero) digits is 40310784, while the sum is 63.

The spelling of 28923992600238 in words is "twenty-eight trillion, nine hundred twenty-three billion, nine hundred ninety-two million, six hundred thousand, two hundred thirty-eight".