28743031587 has 8 divisors (see below), whose sum is σ = 38324839104. Its totient is φ = 19161622568.

The previous prime is 28743031523. The next prime is 28743031613. The reversal of 28743031587 is 78513034782.

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

It is a cyclic number.

It is not a de Polignac number, because 28743031587 - 2⁶ = 28743031523 is a prime.

It is a super-2 number, since 2×28743031587² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28743031507) 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, 184168 + ... + 302330.

It is an arithmetic number, because the mean of its divisors is an integer number (4790604888).

Almost surely, 2^28743031587 is an apocalyptic number.

28743031587 is a deficient number, since it is larger than the sum of its proper divisors (9581807517).

28743031587 is a wasteful number, since it uses less digits than its factorization.

28743031587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199249.

The product of its (nonzero) digits is 1128960, while the sum is 48.

The spelling of 28743031587 in words is "twenty-eight billion, seven hundred forty-three million, thirty-one thousand, five hundred eighty-seven".