28999964067 has 32 divisors (see below), whose sum is σ = 40267898880. Its totient is φ = 18549457920.

The previous prime is 28999964051. The next prime is 28999964083. The reversal of 28999964067 is 76046999982.

It is an interprime number because it is at equal distance from previous prime (28999964051) and next prime (28999964083).

It is not a de Polignac number, because 28999964067 - 2⁴ = 28999964051 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28999963992 and 28999964010.

It is not an unprimeable number, because it can be changed into a prime (28999964467) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7308318 + ... + 7312284.

It is an arithmetic number, because the mean of its divisors is an integer number (1258371840).

Almost surely, 2^28999964067 is an apocalyptic number.

28999964067 is a deficient number, since it is larger than the sum of its proper divisors (11267934813).

28999964067 is a wasteful number, since it uses less digits than its factorization.

28999964067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5003.

The product of its (nonzero) digits is 105815808, while the sum is 69.

The spelling of 28999964067 in words is "twenty-eight billion, nine hundred ninety-nine million, nine hundred sixty-four thousand, sixty-seven".