42581188237128 has 32 divisors (see below), whose sum is σ = 106640058448800. Its totient is φ = 14168784364928.

The previous prime is 42581188237117. The next prime is 42581188237129. The reversal of 42581188237128 is 82173288118524.

It is not an unprimeable number, because it can be changed into a prime (42581188237129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1559051526 + ... + 1559078837.

It is an arithmetic number, because the mean of its divisors is an integer number (3332501826525).

Almost surely, 2^{42581188237128} is an apocalyptic number.

It is an amenable number.

42581188237128 is an abundant number, since it is smaller than the sum of its proper divisors (64058870211672).

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

42581188237128 is a wasteful number, since it uses less digits than its factorization.

42581188237128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3118130941 (or 3118130937 counting only the distinct ones).

The product of its digits is 13762560, while the sum is 60.

The spelling of 42581188237128 in words is "forty-two trillion, five hundred eighty-one billion, one hundred eighty-eight million, two hundred thirty-seven thousand, one hundred twenty-eight".