28374484431 has 16 divisors (see below), whose sum is σ = 38331532800. Its totient is φ = 18667129728.

The previous prime is 28374484421. The next prime is 28374484547. The reversal of 28374484431 is 13448447382.

It is not a de Polignac number, because 28374484431 - 2⁹ = 28374483919 is a prime.

It is a super-2 number, since 2×28374484431² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28374484421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 438775 + ... + 499271.

It is an arithmetic number, because the mean of its divisors is an integer number (2395720800).

Almost surely, 2^28374484431 is an apocalyptic number.

28374484431 is a deficient number, since it is larger than the sum of its proper divisors (9957048369).

28374484431 is a wasteful number, since it uses less digits than its factorization.

28374484431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62558.

The product of its digits is 2064384, while the sum is 48.

The spelling of 28374484431 in words is "twenty-eight billion, three hundred seventy-four million, four hundred eighty-four thousand, four hundred thirty-one".