42561999983592 has 192 divisors, whose sum is σ = 124081981920000. Its totient is φ = 13153708119552.

The previous prime is 42561999983551. The next prime is 42561999983593. The reversal of 42561999983592 is 29538999916524.

42561999983592 is a `hidden beast` number, since 4 + 2 + 5 + 6 + 19 + 9 + 9 + 9 + 8 + 3 + 592 = 666.

It is not an unprimeable number, because it can be changed into a prime (42561999983593) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1109659 + ... + 9292757.

It is an arithmetic number, because the mean of its divisors is an integer number (646260322500).

Almost surely, 2^{42561999983592} 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 42561999983592, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62040990960000).

42561999983592 is an abundant number, since it is smaller than the sum of its proper divisors (81519981936408).

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

42561999983592 is a wasteful number, since it uses less digits than its factorization.

42561999983592 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8183240 (or 8183233 counting only the distinct ones).

The product of its digits is 3401222400, while the sum is 81.

The spelling of 42561999983592 in words is "forty-two trillion, five hundred sixty-one billion, nine hundred ninety-nine million, nine hundred eighty-three thousand, five hundred ninety-two".