28902124471 has 4 divisors (see below), whose sum is σ = 31529590344. Its totient is φ = 26274658600.

The previous prime is 28902124457. The next prime is 28902124477. The reversal of 28902124471 is 17442120982.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28902124471 - 2⁷ = 28902124343 is a prime.

It is a super-3 number, since 3×28902124471³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28902124477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1313732920 + ... + 1313732941.

It is an arithmetic number, because the mean of its divisors is an integer number (7882397586).

Almost surely, 2^28902124471 is an apocalyptic number.

28902124471 is a deficient number, since it is larger than the sum of its proper divisors (2627465873).

28902124471 is a wasteful number, since it uses less digits than its factorization.

28902124471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2627465872.

The product of its (nonzero) digits is 64512, while the sum is 40.

The spelling of 28902124471 in words is "twenty-eight billion, nine hundred two million, one hundred twenty-four thousand, four hundred seventy-one".