43718257242 has 192 divisors, whose sum is σ = 108068732928. Its totient is φ = 12658464000.

The previous prime is 43718257229. The next prime is 43718257243. The reversal of 43718257242 is 24275281734.

43718257242 is a `hidden beast` number, since 4 + 3 + 71 + 8 + 2 + 572 + 4 + 2 = 666.

It is a super-2 number, since 2×43718257242² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (43718257243) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 83911942 + ... + 83912462.

It is an arithmetic number, because the mean of its divisors is an integer number (562857984).

Almost surely, 2^43718257242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43718257242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54034366464).

43718257242 is an abundant number, since it is smaller than the sum of its proper divisors (64350475686).

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

43718257242 is a wasteful number, since it uses less digits than its factorization.

43718257242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 785 (or 782 counting only the distinct ones).

The product of its digits is 752640, while the sum is 45.

The spelling of 43718257242 in words is "forty-three billion, seven hundred eighteen million, two hundred fifty-seven thousand, two hundred forty-two".