28603502213 has 32 divisors (see below), whose sum is σ = 35726987520. Its totient is φ = 22526000640.

The previous prime is 28603502203. The next prime is 28603502231. The reversal of 28603502213 is 31220530682.

It is not a de Polignac number, because 28603502213 - 2⁸ = 28603501957 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28603502213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28603502203) 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, 92273 + ... + 256361.

It is an arithmetic number, because the mean of its divisors is an integer number (1116468360).

Almost surely, 2^28603502213 is an apocalyptic number.

28603502213 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

28603502213 is a deficient number, since it is larger than the sum of its proper divisors (7123485307).

28603502213 is a wasteful number, since it uses less digits than its factorization.

28603502213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164189.

The product of its (nonzero) digits is 17280, while the sum is 32.

The spelling of 28603502213 in words is "twenty-eight billion, six hundred three million, five hundred two thousand, two hundred thirteen".