428762987500 has 36 divisors (see below), whose sum is σ = 937859035680. Its totient is φ = 171505190000.

The previous prime is 428762987479. The next prime is 428762987501. The reversal of 428762987500 is 5789267824.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (428762987501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17138020 + ... + 17163019.

It is an arithmetic number, because the mean of its divisors is an integer number (26051639880).

Almost surely, 2^428762987500 is an apocalyptic number.

It is an amenable number.

428762987500 is an abundant number, since it is smaller than the sum of its proper divisors (509096048180).

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

428762987500 is an equidigital number, since it uses as much as digits as its factorization.

428762987500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34301068 (or 34301046 counting only the distinct ones).

The product of its (nonzero) digits is 13547520, while the sum is 58.

The spelling of 428762987500 in words is "four hundred twenty-eight billion, seven hundred sixty-two million, nine hundred eighty-seven thousand, five hundred".