28979446067 has 8 divisors (see below), whose sum is σ = 34045782960. Its totient is φ = 24318416160.

The previous prime is 28979446051. The next prime is 28979446081. The reversal of 28979446067 is 76064497982.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28979446067 - 2⁴ = 28979446051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28979446007) 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, 101326592 + ... + 101326877.

It is an arithmetic number, because the mean of its divisors is an integer number (4255722870).

Almost surely, 2^28979446067 is an apocalyptic number.

28979446067 is a deficient number, since it is larger than the sum of its proper divisors (5066336893).

28979446067 is a wasteful number, since it uses less digits than its factorization.

28979446067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202653493.

The product of its (nonzero) digits is 36578304, while the sum is 62.

The spelling of 28979446067 in words is "twenty-eight billion, nine hundred seventy-nine million, four hundred forty-six thousand, sixty-seven".