28889858955 has 32 divisors (see below), whose sum is σ = 47332454400. Its totient is φ = 15038876160.

The previous prime is 28889858917. The next prime is 28889858983. The reversal of 28889858955 is 55985898882.

It is not a de Polignac number, because 28889858955 - 2¹³ = 28889850763 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 933571 + ... + 964019.

It is an arithmetic number, because the mean of its divisors is an integer number (1479139200).

Almost surely, 2^28889858955 is an apocalyptic number.

28889858955 is a deficient number, since it is larger than the sum of its proper divisors (18442595445).

28889858955 is a wasteful number, since it uses less digits than its factorization.

28889858955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31971.

The product of its digits is 663552000, while the sum is 75.

The spelling of 28889858955 in words is "twenty-eight billion, eight hundred eighty-nine million, eight hundred fifty-eight thousand, nine hundred fifty-five".