28641403467 has 16 divisors (see below), whose sum is σ = 43232309280. Its totient is φ = 18733998816.

The previous prime is 28641403447. The next prime is 28641403477. The reversal of 28641403467 is 76430414682.

It is not a de Polignac number, because 28641403467 - 2¹⁴ = 28641387083 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (28641403447) 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, 10006048 + ... + 10008909.

It is an arithmetic number, because the mean of its divisors is an integer number (2702019330).

Almost surely, 2^28641403467 is an apocalyptic number.

28641403467 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

28641403467 is a deficient number, since it is larger than the sum of its proper divisors (14590905813).

28641403467 is a wasteful number, since it uses less digits than its factorization.

28641403467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20015019 (or 20015013 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 45.

The spelling of 28641403467 in words is "twenty-eight billion, six hundred forty-one million, four hundred three thousand, four hundred sixty-seven".