28836603243 has 72 divisors (see below), whose sum is σ = 51355888272. Its totient is φ = 15492943872.

The previous prime is 28836603239. The next prime is 28836603251. The reversal of 28836603243 is 34230663882.

28836603243 is a `hidden beast` number, since 2 + 8 + 8 + 36 + 603 + 2 + 4 + 3 = 666.

It is not a de Polignac number, because 28836603243 - 2² = 28836603239 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (28836603253) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 14295771 + ... + 14297787.

It is an arithmetic number, because the mean of its divisors is an integer number (713276226).

Almost surely, 2^28836603243 is an apocalyptic number.

28836603243 is a deficient number, since it is larger than the sum of its proper divisors (22519285029).

28836603243 is a wasteful number, since it uses less digits than its factorization.

28836603243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3961 (or 3951 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 45.

The spelling of 28836603243 in words is "twenty-eight billion, eight hundred thirty-six million, six hundred three thousand, two hundred forty-three".