28870032863 has 16 divisors (see below), whose sum is σ = 33857834304. Its totient is φ = 24100208640.

The previous prime is 28870032767. The next prime is 28870032881. The reversal of 28870032863 is 36823007882.

It is a cyclic number.

It is not a de Polignac number, because 28870032863 - 2²⁴ = 28853255647 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28870032263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78431 + ... + 252767.

It is an arithmetic number, because the mean of its divisors is an integer number (2116114644).

Almost surely, 2^28870032863 is an apocalyptic number.

28870032863 is a deficient number, since it is larger than the sum of its proper divisors (4987801441).

28870032863 is a wasteful number, since it uses less digits than its factorization.

28870032863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174962.

The product of its (nonzero) digits is 774144, while the sum is 47.

The spelling of 28870032863 in words is "twenty-eight billion, eight hundred seventy million, thirty-two thousand, eight hundred sixty-three".