28477634565136 has 15 divisors (see below), whose sum is σ = 55175458327423. Its totient is φ = 14238806609680.

The previous prime is 28477634565103. The next prime is 28477634565221. The reversal of 28477634565136 is 63156543677482.

The square root of 28477634565136 is 5336444.

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 polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 20678721 + ... + 22012831.

Almost surely, 2^{28477634565136} is an apocalyptic number.

28477634565136 is the 5336444-th square number.

It is an amenable number.

28477634565136 is a deficient number, since it is larger than the sum of its proper divisors (26697823762287).

28477634565136 is an frugal number, since it uses more digits than its factorization.

28477634565136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2668230 (or 1334113 counting only the distinct ones).

The product of its digits is 609638400, while the sum is 67.

The spelling of 28477634565136 in words is "twenty-eight trillion, four hundred seventy-seven billion, six hundred thirty-four million, five hundred sixty-five thousand, one hundred thirty-six".