28572493156 has 27 divisors (see below), whose sum is σ = 50359967091. Its totient is φ = 14184657144.

The previous prime is 28572493139. The next prime is 28572493163. The reversal of 28572493156 is 65139427582.

The square root of 28572493156 is 169034.

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

It is a Duffinian number.

It is an unprimeable number.

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 8 ways as a sum of consecutive naturals, for example, 75388975 + ... + 75389353.

Almost surely, 2^28572493156 is an apocalyptic number.

28572493156 is the 169034-th square number.

It is an amenable number.

28572493156 is a deficient number, since it is larger than the sum of its proper divisors (21787473935).

28572493156 is an frugal number, since it uses more digits than its factorization.

28572493156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1208 (or 604 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 52.

The spelling of 28572493156 in words is "twenty-eight billion, five hundred seventy-two million, four hundred ninety-three thousand, one hundred fifty-six".