428117879452 has 12 divisors (see below), whose sum is σ = 749218546216. Its totient is φ = 214055437680.

The previous prime is 428117879429. The next prime is 428117879477. The reversal of 428117879452 is 254978711824.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 590118 + ... + 1097485.

Almost surely, 2^428117879452 is an apocalyptic number.

It is an amenable number.

428117879452 is a deficient number, since it is larger than the sum of its proper divisors (321100666764).

428117879452 is a wasteful number, since it uses less digits than its factorization.

428117879452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1751028 (or 1751026 counting only the distinct ones).

The product of its digits is 9031680, while the sum is 58.

The spelling of 428117879452 in words is "four hundred twenty-eight billion, one hundred seventeen million, eight hundred seventy-nine thousand, four hundred fifty-two".