428111921292 has 36 divisors (see below), whose sum is σ = 1097995041528. Its totient is φ = 129730884800.

The previous prime is 428111921273. The next prime is 428111921297. The reversal of 428111921292 is 292129111824.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (428111921297) 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, 147420009 + ... + 147422912.

Almost surely, 2^428111921292 is an apocalyptic number.

It is an amenable number.

428111921292 is an abundant number, since it is smaller than the sum of its proper divisors (669883120236).

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

428111921292 is a wasteful number, since it uses less digits than its factorization.

428111921292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294842950 (or 294842937 counting only the distinct ones).

The product of its digits is 41472, while the sum is 42.

The spelling of 428111921292 in words is "four hundred twenty-eight billion, one hundred eleven million, nine hundred twenty-one thousand, two hundred ninety-two".