428487787260 has 144 divisors (see below), whose sum is σ = 1447993441440. Its totient is φ = 101836869120.

The previous prime is 428487787249. The next prime is 428487787261. The reversal of 428487787260 is 62787784824.

428487787260 is a `hidden beast` number, since 4 + 28 + 487 + 7 + 8 + 72 + 60 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428487787261) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3089286 + ... + 3225005.

It is an arithmetic number, because the mean of its divisors is an integer number (10055510010).

Almost surely, 2^428487787260 is an apocalyptic number.

It is an amenable number.

428487787260 is an abundant number, since it is smaller than the sum of its proper divisors (1019505654180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

428487787260 is a wasteful number, since it uses less digits than its factorization.

428487787260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6314348 (or 6314343 counting only the distinct ones).

The product of its (nonzero) digits is 67436544, while the sum is 63.

The spelling of 428487787260 in words is "four hundred twenty-eight billion, four hundred eighty-seven million, seven hundred eighty-seven thousand, two hundred sixty".