28539763724687 has 8 divisors (see below), whose sum is σ = 29023575190800. Its totient is φ = 28055955147264.

The previous prime is 28539763724627. The next prime is 28539763724699. The reversal of 28539763724687 is 78642736793582.

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 28539763724687 - 2¹⁶ = 28539763659151 is a prime.

It is a super-2 number, since 2×28539763724687² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28539763724627) 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, 30682493 + ... + 31598969.

It is an arithmetic number, because the mean of its divisors is an integer number (3627946898850).

Almost surely, 2^{28539763724687} is an apocalyptic number.

28539763724687 is a deficient number, since it is larger than the sum of its proper divisors (483811466113).

28539763724687 is an equidigital number, since it uses as much as digits as its factorization.

28539763724687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1444345.

The product of its digits is 5120962560, while the sum is 77.

The spelling of 28539763724687 in words is "twenty-eight trillion, five hundred thirty-nine billion, seven hundred sixty-three million, seven hundred twenty-four thousand, six hundred eighty-seven".