28082002766538 has 32 divisors (see below), whose sum is σ = 64188727214976. Its totient is φ = 8023267821888.

The previous prime is 28082002766431. The next prime is 28082002766549. The reversal of 28082002766538 is 83566720028082.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4612081 + ... + 8799732.

It is an arithmetic number, because the mean of its divisors is an integer number (2005897725468).

Almost surely, 2^{28082002766538} is an apocalyptic number.

28082002766538 is an abundant number, since it is smaller than the sum of its proper divisors (36106724448438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28082002766538 is a wasteful number, since it uses less digits than its factorization.

28082002766538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13461678.

The product of its (nonzero) digits is 15482880, while the sum is 57.

The spelling of 28082002766538 in words is "twenty-eight trillion, eighty-two billion, two million, seven hundred sixty-six thousand, five hundred thirty-eight".