28487787927 has 8 divisors (see below), whose sum is σ = 40218053616. Its totient is φ = 17874690432.

The previous prime is 28487787907. The next prime is 28487787941. The reversal of 28487787927 is 72978778482.

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

It is not a de Polignac number, because 28487787927 - 2⁶ = 28487787863 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28487787907) 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, 279291988 + ... + 279292089.

It is an arithmetic number, because the mean of its divisors is an integer number (5027256702).

Almost surely, 2^28487787927 is an apocalyptic number.

28487787927 is a deficient number, since it is larger than the sum of its proper divisors (11730265689).

28487787927 is a wasteful number, since it uses less digits than its factorization.

28487787927 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558584097.

The product of its digits is 177020928, while the sum is 69.

The spelling of 28487787927 in words is "twenty-eight billion, four hundred eighty-seven million, seven hundred eighty-seven thousand, nine hundred twenty-seven".