428274305487 has 96 divisors (see below), whose sum is σ = 735308288000. Its totient is φ = 235052928000.

The previous prime is 428274305479. The next prime is 428274305491. The reversal of 428274305487 is 784503472824.

428274305487 is a `hidden beast` number, since 4 + 2 + 82 + 7 + 430 + 54 + 87 = 666.

It is not a de Polignac number, because 428274305487 - 2³ = 428274305479 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 (428274305087) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 155791389 + ... + 155794137.

Almost surely, 2^428274305487 is an apocalyptic number.

428274305487 is a deficient number, since it is larger than the sum of its proper divisors (307033982513).

428274305487 is a wasteful number, since it uses less digits than its factorization.

428274305487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3365 (or 3362 counting only the distinct ones).

The product of its (nonzero) digits is 12042240, while the sum is 54.

The spelling of 428274305487 in words is "four hundred twenty-eight billion, two hundred seventy-four million, three hundred five thousand, four hundred eighty-seven".