428383176528 has 40 divisors (see below), whose sum is σ = 1171753985088. Its totient is φ = 134394721792.

The previous prime is 428383176499. The next prime is 428383176547. The reversal of 428383176528 is 825671383824.

It is a super-2 number, since 2×428383176528² (a number of 24 digits) contains 22 as substring.

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, 262488876 + ... + 262490507.

Almost surely, 2^428383176528 is an apocalyptic number.

428383176528 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

428383176528 is an abundant number, since it is smaller than the sum of its proper divisors (743370808560).

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

428383176528 is a wasteful number, since it uses less digits than its factorization.

428383176528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524979411 (or 524979405 counting only the distinct ones).

The product of its digits is 15482880, while the sum is 57.

The spelling of 428383176528 in words is "four hundred twenty-eight billion, three hundred eighty-three million, one hundred seventy-six thousand, five hundred twenty-eight".