28880587387 has 8 divisors (see below), whose sum is σ = 28910587904. Its totient is φ = 28850606568.

The previous prime is 28880587361. The next prime is 28880587441. The reversal of 28880587387 is 78378508882.

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 28880587387 - 2¹¹ = 28880585339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28880585387) 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, 5747158 + ... + 5752180.

It is an arithmetic number, because the mean of its divisors is an integer number (3613823488).

Almost surely, 2^28880587387 is an apocalyptic number.

28880587387 is a deficient number, since it is larger than the sum of its proper divisors (30000517).

28880587387 is a wasteful number, since it uses less digits than its factorization.

28880587387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9849.

The product of its (nonzero) digits is 48168960, while the sum is 64.

The spelling of 28880587387 in words is "twenty-eight billion, eight hundred eighty million, five hundred eighty-seven thousand, three hundred eighty-seven".