28892216446 has 32 divisors (see below), whose sum is σ = 45108778176. Its totient is φ = 13868064000.

The previous prime is 28892216417. The next prime is 28892216447. The reversal of 28892216446 is 64461229882.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 28892216393 and 28892216402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28892216447) 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, 3145116 + ... + 3154288.

It is an arithmetic number, because the mean of its divisors is an integer number (1409649318).

Almost surely, 2^28892216446 is an apocalyptic number.

28892216446 is a deficient number, since it is larger than the sum of its proper divisors (16216561730).

28892216446 is a wasteful number, since it uses less digits than its factorization.

28892216446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9828.

The product of its digits is 2654208, while the sum is 52.

The spelling of 28892216446 in words is "twenty-eight billion, eight hundred ninety-two million, two hundred sixteen thousand, four hundred forty-six".