28889148572 has 12 divisors (see below), whose sum is σ = 50568288960. Its totient is φ = 14441066016.

The previous prime is 28889148569. The next prime is 28889148581. The reversal of 28889148572 is 27584198882.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 858497 + ... + 891512.

It is an arithmetic number, because the mean of its divisors is an integer number (4214024080).

Almost surely, 2^28889148572 is an apocalyptic number.

It is an amenable number.

28889148572 is a deficient number, since it is larger than the sum of its proper divisors (21679140388).

28889148572 is a wasteful number, since it uses less digits than its factorization.

28889148572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1754140 (or 1754138 counting only the distinct ones).

The product of its digits is 20643840, while the sum is 62.

The spelling of 28889148572 in words is "twenty-eight billion, eight hundred eighty-nine million, one hundred forty-eight thousand, five hundred seventy-two".