28419308481 has 16 divisors (see below), whose sum is σ = 38549790720. Its totient is φ = 18619907280.

The previous prime is 28419308471. The next prime is 28419308537. The reversal of 28419308481 is 18480391482.

It is a happy number.

It is not a de Polignac number, because 28419308481 - 2¹⁰ = 28419307457 is a prime.

It is a super-2 number, since 2×28419308481² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28419308481.

It is not an unprimeable number, because it can be changed into a prime (28419308471) 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, 251221 + ... + 346338.

It is an arithmetic number, because the mean of its divisors is an integer number (2409361920).

Almost surely, 2^28419308481 is an apocalyptic number.

It is an amenable number.

28419308481 is a deficient number, since it is larger than the sum of its proper divisors (10130482239).

28419308481 is a wasteful number, since it uses less digits than its factorization.

28419308481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 597836.

The product of its (nonzero) digits is 442368, while the sum is 48.

The spelling of 28419308481 in words is "twenty-eight billion, four hundred nineteen million, three hundred eight thousand, four hundred eighty-one".