28456033423 has 16 divisors (see below), whose sum is σ = 30714850080. Its totient is φ = 26262752256.

The previous prime is 28456033379. The next prime is 28456033429. The reversal of 28456033423 is 32433065482.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 28456033423 - 2⁹ = 28456032911 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 (28456033429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1918048 + ... + 1932826.

It is an arithmetic number, because the mean of its divisors is an integer number (1919678130).

Almost surely, 2^28456033423 is an apocalyptic number.

28456033423 is a deficient number, since it is larger than the sum of its proper divisors (2258816657).

28456033423 is a wasteful number, since it uses less digits than its factorization.

28456033423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16986.

The product of its (nonzero) digits is 414720, while the sum is 40.

The spelling of 28456033423 in words is "twenty-eight billion, four hundred fifty-six million, thirty-three thousand, four hundred twenty-three".