28851189906378 has 16 divisors (see below), whose sum is σ = 65945576928960. Its totient is φ = 8243197116096.

The previous prime is 28851189906373. The next prime is 28851189906389. The reversal of 28851189906378 is 87360998115882.

It is not an unprimeable number, because it can be changed into a prime (28851189906373) 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, 343466546463 + ... + 343466546546.

It is an arithmetic number, because the mean of its divisors is an integer number (4121598558060).

Almost surely, 2^{28851189906378} is an apocalyptic number.

28851189906378 is an abundant number, since it is smaller than the sum of its proper divisors (37094387022582).

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

28851189906378 is a wasteful number, since it uses less digits than its factorization.

28851189906378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686933093021.

The product of its (nonzero) digits is 418037760, while the sum is 75.

The spelling of 28851189906378 in words is "twenty-eight trillion, eight hundred fifty-one billion, one hundred eighty-nine million, nine hundred six thousand, three hundred seventy-eight".