28456606923 has 16 divisors (see below), whose sum is σ = 38030226720. Its totient is φ = 18927074304.

The previous prime is 28456606921. The next prime is 28456606931. The reversal of 28456606923 is 32960665482.

It is not a de Polignac number, because 28456606923 - 2¹ = 28456606921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28456606921) 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, 3182523 + ... + 3191451.

It is an arithmetic number, because the mean of its divisors is an integer number (2376889170).

Almost surely, 2^28456606923 is an apocalyptic number.

28456606923 is a deficient number, since it is larger than the sum of its proper divisors (9573619797).

28456606923 is a wasteful number, since it uses less digits than its factorization.

28456606923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11278.

The product of its (nonzero) digits is 3732480, while the sum is 51.

The spelling of 28456606923 in words is "twenty-eight billion, four hundred fifty-six million, six hundred six thousand, nine hundred twenty-three".