42557645430 has 160 divisors (see below), whose sum is σ = 119591645184. Its totient is φ = 10838608704.

The previous prime is 42557645381. The next prime is 42557645441. The reversal of 42557645430 is 3454675524.

42557645430 is a `hidden beast` number, since 4 + 2 + 5 + 576 + 45 + 4 + 30 = 666.

It is a super-2 number, since 2×42557645430² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 16076367 + ... + 16079013.

Almost surely, 2^42557645430 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42557645430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59795822592).

42557645430 is an abundant number, since it is smaller than the sum of its proper divisors (77033999754).

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

42557645430 is a wasteful number, since it uses less digits than its factorization.

42557645430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3552 (or 3543 counting only the distinct ones).

The product of its (nonzero) digits is 2016000, while the sum is 45.

The spelling of 42557645430 in words is "forty-two billion, five hundred fifty-seven million, six hundred forty-five thousand, four hundred thirty".