28376929889 has 16 divisors (see below), whose sum is σ = 35907081216. Its totient is φ = 21781861200.

The previous prime is 28376929883. The next prime is 28376929897. The reversal of 28376929889 is 98892967382.

It is not a de Polignac number, because 28376929889 - 2²⁴ = 28360152673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28376929883) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2745077 + ... + 2755394.

It is an arithmetic number, because the mean of its divisors is an integer number (2244192576).

Almost surely, 2^28376929889 is an apocalyptic number.

It is an amenable number.

28376929889 is a deficient number, since it is larger than the sum of its proper divisors (7530151327).

28376929889 is a wasteful number, since it uses less digits than its factorization.

28376929889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5500556.

The product of its digits is 188116992, while the sum is 71.

The spelling of 28376929889 in words is "twenty-eight billion, three hundred seventy-six million, nine hundred twenty-nine thousand, eight hundred eighty-nine".