42536123772 has 24 divisors (see below), whose sum is σ = 99317922816. Its totient is φ = 14169141168.

The previous prime is 42536123717. The next prime is 42536123797. The reversal of 42536123772 is 27732163524.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1177308 + ... + 1212899.

It is an arithmetic number, because the mean of its divisors is an integer number (4138246784).

Almost surely, 2^42536123772 is an apocalyptic number.

It is an amenable number.

42536123772 is an abundant number, since it is smaller than the sum of its proper divisors (56781799044).

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

42536123772 is a wasteful number, since it uses less digits than its factorization.

42536123772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2391697 (or 2391695 counting only the distinct ones).

The product of its digits is 423360, while the sum is 42.

The spelling of 42536123772 in words is "forty-two billion, five hundred thirty-six million, one hundred twenty-three thousand, seven hundred seventy-two".