42415726428684 has 240 divisors, whose sum is σ = 128126191640832. Its totient is φ = 11985026779008.

The previous prime is 42415726428653. The next prime is 42415726428689. The reversal of 42415726428684 is 48682462751424.

42415726428684 is a `hidden beast` number, since 4 + 2 + 4 + 15 + 7 + 264 + 286 + 84 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (42415726428689) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 142301934 + ... + 142599690.

Almost surely, 2^{42415726428684} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42415726428684, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64063095820416).

42415726428684 is an abundant number, since it is smaller than the sum of its proper divisors (85710465212148).

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

42415726428684 is a wasteful number, since it uses less digits than its factorization.

42415726428684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298474 (or 298463 counting only the distinct ones).

The product of its digits is 165150720, while the sum is 63.

The spelling of 42415726428684 in words is "forty-two trillion, four hundred fifteen billion, seven hundred twenty-six million, four hundred twenty-eight thousand, six hundred eighty-four".