28624345387 has 8 divisors (see below), whose sum is σ = 31243253040. Its totient is φ = 26008220160.

The previous prime is 28624345363. The next prime is 28624345427. The reversal of 28624345387 is 78354342682.

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 28624345387 - 2¹⁹ = 28623821099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28624345327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 674062 + ... + 715267.

It is an arithmetic number, because the mean of its divisors is an integer number (3905406630).

Almost surely, 2^28624345387 is an apocalyptic number.

28624345387 is a deficient number, since it is larger than the sum of its proper divisors (2618907653).

28624345387 is a wasteful number, since it uses less digits than its factorization.

28624345387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1391213.

The product of its digits is 7741440, while the sum is 52.

The spelling of 28624345387 in words is "twenty-eight billion, six hundred twenty-four million, three hundred forty-five thousand, three hundred eighty-seven".