28264169023 has 4 divisors (see below), whose sum is σ = 28686022360. Its totient is φ = 27842315688.

The previous prime is 28264168991. The next prime is 28264169033. The reversal of 28264169023 is 32096146282.

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

It is a cyclic number.

It is not a de Polignac number, because 28264169023 - 2⁵ = 28264168991 is a prime.

It is a super-3 number, since 3×28264169023³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28264169033) 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, 210926568 + ... + 210926701.

It is an arithmetic number, because the mean of its divisors is an integer number (7171505590).

Almost surely, 2^28264169023 is an apocalyptic number.

28264169023 is a deficient number, since it is larger than the sum of its proper divisors (421853337).

28264169023 is an equidigital number, since it uses as much as digits as its factorization.

28264169023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421853336.

The product of its (nonzero) digits is 248832, while the sum is 43.

The spelling of 28264169023 in words is "twenty-eight billion, two hundred sixty-four million, one hundred sixty-nine thousand, twenty-three".