28985546019 has 16 divisors (see below), whose sum is σ = 39314390400. Its totient is φ = 18990398976.

The previous prime is 28985545999. The next prime is 28985546063. The reversal of 28985546019 is 91064558982.

It is a happy number.

It is not a de Polignac number, because 28985546019 - 2⁷ = 28985545891 is a prime.

It is a super-2 number, since 2×28985546019² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28985546019.

It is not an unprimeable number, because it can be changed into a prime (28985546089) 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, 603267 + ... + 649539.

It is an arithmetic number, because the mean of its divisors is an integer number (2457149400).

Almost surely, 2^28985546019 is an apocalyptic number.

28985546019 is a deficient number, since it is larger than the sum of its proper divisors (10328844381).

28985546019 is a wasteful number, since it uses less digits than its factorization.

28985546019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49874.

The product of its (nonzero) digits is 6220800, while the sum is 57.

The spelling of 28985546019 in words is "twenty-eight billion, nine hundred eighty-five million, five hundred forty-six thousand, nineteen".