42512243292 has 72 divisors (see below), whose sum is σ = 112266161280. Its totient is φ = 13538622240.

The previous prime is 42512243261. The next prime is 42512243299. The reversal of 42512243292 is 29234221524.

42512243292 is a `hidden beast` number, since 4 + 2 + 512 + 24 + 32 + 92 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42512243299) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 681367 + ... + 741137.

It is an arithmetic number, because the mean of its divisors is an integer number (1559252240).

Almost surely, 2^42512243292 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 42512243292, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56133080640).

42512243292 is an abundant number, since it is smaller than the sum of its proper divisors (69753917988).

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

42512243292 is a wasteful number, since it uses less digits than its factorization.

42512243292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60663 (or 60658 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The spelling of 42512243292 in words is "forty-two billion, five hundred twelve million, two hundred forty-three thousand, two hundred ninety-two".