28474539591 has 8 divisors (see below), whose sum is σ = 38588447344. Its totient is φ = 18671829120.

The previous prime is 28474539553. The next prime is 28474539593. The reversal of 28474539591 is 19593547482.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28474539591 - 2¹³ = 28474531399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28474539593) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77799106 + ... + 77799471.

It is an arithmetic number, because the mean of its divisors is an integer number (4823555918).

Almost surely, 2^28474539591 is an apocalyptic number.

28474539591 is a deficient number, since it is larger than the sum of its proper divisors (10113907753).

28474539591 is a wasteful number, since it uses less digits than its factorization.

28474539591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155598641.

The product of its digits is 10886400, while the sum is 57.

The spelling of 28474539591 in words is "twenty-eight billion, four hundred seventy-four million, five hundred thirty-nine thousand, five hundred ninety-one".