28448558986 has 16 divisors (see below), whose sum is σ = 43707106080. Its totient is φ = 13883419440.

The previous prime is 28448558953. The next prime is 28448559037. The reversal of 28448558986 is 68985584482.

It is a Harshad number since it is a multiple of its sum of digits (67).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 959260 + ... + 988471.

It is an arithmetic number, because the mean of its divisors is an integer number (2731694130).

Almost surely, 2^28448558986 is an apocalyptic number.

28448558986 is a deficient number, since it is larger than the sum of its proper divisors (15258547094).

28448558986 is a wasteful number, since it uses less digits than its factorization.

28448558986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1947909.

The product of its digits is 176947200, while the sum is 67.

The spelling of 28448558986 in words is "twenty-eight billion, four hundred forty-eight million, five hundred fifty-eight thousand, nine hundred eighty-six".