28570489487 has 24 divisors (see below), whose sum is σ = 30891598080. Its totient is φ = 26350142400.

The previous prime is 28570489477. The next prime is 28570489489. The reversal of 28570489487 is 78498407582.

It is not a de Polignac number, because 28570489487 - 2¹⁶ = 28570423951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28570489489) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25901978 + ... + 25903080.

It is an arithmetic number, because the mean of its divisors is an integer number (1287149920).

Almost surely, 2^28570489487 is an apocalyptic number.

28570489487 is a deficient number, since it is larger than the sum of its proper divisors (2321108593).

28570489487 is a wasteful number, since it uses less digits than its factorization.

28570489487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2015 (or 1974 counting only the distinct ones).

The product of its (nonzero) digits is 36126720, while the sum is 62.

The spelling of 28570489487 in words is "twenty-eight billion, five hundred seventy million, four hundred eighty-nine thousand, four hundred eighty-seven".