42539077140 has 96 divisors (see below), whose sum is σ = 136290760704. Its totient is φ = 9711381120.

The previous prime is 42539077129. The next prime is 42539077153. The reversal of 42539077140 is 4177093524.

42539077140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 42539077092 and 42539077101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 286105 + ... + 408575.

It is an arithmetic number, because the mean of its divisors is an integer number (1419695424).

Almost surely, 2^42539077140 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 42539077140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68145380352).

42539077140 is an abundant number, since it is smaller than the sum of its proper divisors (93751683564).

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

42539077140 is a wasteful number, since it uses less digits than its factorization.

42539077140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123317 (or 123315 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 42.

The spelling of 42539077140 in words is "forty-two billion, five hundred thirty-nine million, seventy-seven thousand, one hundred forty".