28773013516 has 12 divisors (see below), whose sum is σ = 54226064032. Its totient is φ = 13279852368.

The previous prime is 28773013513. The next prime is 28773013531. The reversal of 28773013516 is 61531037782.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (28773013513) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 276663540 + ... + 276663643.

Almost surely, 2^28773013516 is an apocalyptic number.

28773013516 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

28773013516 is a deficient number, since it is larger than the sum of its proper divisors (25453050516).

28773013516 is a wasteful number, since it uses less digits than its factorization.

28773013516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553327200 (or 553327198 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 43.

The spelling of 28773013516 in words is "twenty-eight billion, seven hundred seventy-three million, thirteen thousand, five hundred sixteen".