428122417492 has 48 divisors (see below), whose sum is σ = 934917806592. Its totient is φ = 166652275680.

The previous prime is 428122417487. The next prime is 428122417511. The reversal of 428122417492 is 294714221824.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 272998 + ... + 964765.

It is an arithmetic number, because the mean of its divisors is an integer number (19477454304).

Almost surely, 2^428122417492 is an apocalyptic number.

It is an amenable number.

428122417492 is an abundant number, since it is smaller than the sum of its proper divisors (506795389100).

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

428122417492 is a wasteful number, since it uses less digits than its factorization.

428122417492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1238908 (or 1238906 counting only the distinct ones).

The product of its digits is 516096, while the sum is 46.

The spelling of 428122417492 in words is "four hundred twenty-eight billion, one hundred twenty-two million, four hundred seventeen thousand, four hundred ninety-two".