28763046173 has 4 divisors (see below), whose sum is σ = 28763903808. Its totient is φ = 28762188540.

The previous prime is 28763046157. The next prime is 28763046223. The reversal of 28763046173 is 37164036782.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 37164036782 = 2 ⋅18582018391.

It is a cyclic number.

It is not a de Polignac number, because 28763046173 - 2⁴ = 28763046157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28763043173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 376373 + ... + 446298.

It is an arithmetic number, because the mean of its divisors is an integer number (7190975952).

Almost surely, 2^28763046173 is an apocalyptic number.

It is an amenable number.

28763046173 is a deficient number, since it is larger than the sum of its proper divisors (857635).

28763046173 is an equidigital number, since it uses as much as digits as its factorization.

28763046173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 857634.

The product of its (nonzero) digits is 1016064, while the sum is 47.

The spelling of 28763046173 in words is "twenty-eight billion, seven hundred sixty-three million, forty-six thousand, one hundred seventy-three".