42724634620 has 96 divisors (see below), whose sum is σ = 97958246400. Its totient is φ = 15592953600.

The previous prime is 42724634609. The next prime is 42724634663. The reversal of 42724634620 is 2643642724.

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 31 ways as a sum of consecutive naturals, for example, 2476986 + ... + 2494174.

It is an arithmetic number, because the mean of its divisors is an integer number (1020398400).

Almost surely, 2^42724634620 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 42724634620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48979123200).

42724634620 is an abundant number, since it is smaller than the sum of its proper divisors (55233611780).

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

42724634620 is a wasteful number, since it uses less digits than its factorization.

42724634620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17459 (or 17457 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 40.

The spelling of 42724634620 in words is "forty-two billion, seven hundred twenty-four million, six hundred thirty-four thousand, six hundred twenty".