28470555487 has 12 divisors (see below), whose sum is σ = 31324053600. Its totient is φ = 25857534560.

The previous prime is 28470555479. The next prime is 28470555511. The reversal of 28470555487 is 78455507482.

It is not a de Polignac number, because 28470555487 - 2³ = 28470555479 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 (28470555887) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14778 + ... + 239080.

It is an arithmetic number, because the mean of its divisors is an integer number (2610337800).

Almost surely, 2^28470555487 is an apocalyptic number.

28470555487 is a deficient number, since it is larger than the sum of its proper divisors (2853498113).

28470555487 is a wasteful number, since it uses less digits than its factorization.

28470555487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225374 (or 225363 counting only the distinct ones).

The product of its (nonzero) digits is 12544000, while the sum is 55.

The spelling of 28470555487 in words is "twenty-eight billion, four hundred seventy million, five hundred fifty-five thousand, four hundred eighty-seven".