28867355998 has 16 divisors (see below), whose sum is σ = 46634777280. Its totient is φ = 13322568096.

The previous prime is 28867355981. The next prime is 28867355999. The reversal of 28867355998 is 89955376882.

It is a super-3 number, since 3×28867355998³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28867355999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 646036 + ... + 689272.

It is an arithmetic number, because the mean of its divisors is an integer number (2914673580).

Almost surely, 2^28867355998 is an apocalyptic number.

28867355998 is a deficient number, since it is larger than the sum of its proper divisors (17767421282).

28867355998 is a wasteful number, since it uses less digits than its factorization.

28867355998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68931.

The product of its digits is 261273600, while the sum is 70.

The spelling of 28867355998 in words is "twenty-eight billion, eight hundred sixty-seven million, three hundred fifty-five thousand, nine hundred ninety-eight".