428658009432 has 32 divisors (see below), whose sum is σ = 1071741268080. Its totient is φ = 142873170560.

The previous prime is 428658009421. The next prime is 428658009497. The reversal of 428658009432 is 234900856824.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 527319 + ... + 1065542.

Almost surely, 2^428658009432 is an apocalyptic number.

It is an amenable number.

428658009432 is an abundant number, since it is smaller than the sum of its proper divisors (643083258648).

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

428658009432 is a wasteful number, since it uses less digits than its factorization.

428658009432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1604083 (or 1604079 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 51.

The spelling of 428658009432 in words is "four hundred twenty-eight billion, six hundred fifty-eight million, nine thousand, four hundred thirty-two".