28192424836 has 27 divisors (see below), whose sum is σ = 50728564719. Its totient is φ = 13709189088.

The previous prime is 28192424783. The next prime is 28192424857. The reversal of 28192424836 is 63842429182.

The square root of 28192424836 is 167906.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 418202500 + 27774222336 = 20450^2 + 166656^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28192424836.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 12423910 + ... + 12426178.

Almost surely, 2^28192424836 is an apocalyptic number.

28192424836 is the 167906-th square number.

It is an amenable number.

28192424836 is a deficient number, since it is larger than the sum of its proper divisors (22536139883).

28192424836 is an frugal number, since it uses more digits than its factorization.

28192424836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4616 (or 2308 counting only the distinct ones).

The product of its digits is 1327104, while the sum is 49.

Multiplying 28192424836 by its sum of digits (49), we get a square (1381428816964 = 1175342²).

The spelling of 28192424836 in words is "twenty-eight billion, one hundred ninety-two million, four hundred twenty-four thousand, eight hundred thirty-six".