28866842488 has 32 divisors (see below), whose sum is σ = 59210352000. Its totient is φ = 13084728160.

The previous prime is 28866842483. The next prime is 28866842497. The reversal of 28866842488 is 88424866882.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28866842483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 425278 + ... + 488461.

It is an arithmetic number, because the mean of its divisors is an integer number (1850323500).

Almost surely, 2^28866842488 is an apocalyptic number.

It is an amenable number.

28866842488 is an abundant number, since it is smaller than the sum of its proper divisors (30343509512).

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

28866842488 is a wasteful number, since it uses less digits than its factorization.

28866842488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 914115 (or 914111 counting only the distinct ones).

The product of its digits is 75497472, while the sum is 64.

The spelling of 28866842488 in words is "twenty-eight billion, eight hundred sixty-six million, eight hundred forty-two thousand, four hundred eighty-eight".