28967544923 has 4 divisors (see below), whose sum is σ = 29901981888. Its totient is φ = 28033107960.

The previous prime is 28967544917. The next prime is 28967544929. The reversal of 28967544923 is 32944576982.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (28967544917) and next prime (28967544929).

It is a cyclic number.

It is not a de Polignac number, because 28967544923 - 2⁸ = 28967544667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28967544929) 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, 467218436 + ... + 467218497.

It is an arithmetic number, because the mean of its divisors is an integer number (7475495472).

Almost surely, 2^28967544923 is an apocalyptic number.

28967544923 is a deficient number, since it is larger than the sum of its proper divisors (934436965).

28967544923 is an equidigital number, since it uses as much as digits as its factorization.

28967544923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 934436964.

The product of its digits is 26127360, while the sum is 59.

The spelling of 28967544923 in words is "twenty-eight billion, nine hundred sixty-seven million, five hundred forty-four thousand, nine hundred twenty-three".