42915105816 has 96 divisors (see below), whose sum is σ = 118129536000. Its totient is φ = 12982340800.

The previous prime is 42915105799. The next prime is 42915105817. The reversal of 42915105816 is 61850151924.

42915105816 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42915105817) 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, 1727161 + ... + 1751831.

It is an arithmetic number, because the mean of its divisors is an integer number (1230516000).

Almost surely, 2^42915105816 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 42915105816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59064768000).

42915105816 is an abundant number, since it is smaller than the sum of its proper divisors (75214430184).

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

42915105816 is a wasteful number, since it uses less digits than its factorization.

42915105816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25301 (or 25286 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 42.

The spelling of 42915105816 in words is "forty-two billion, nine hundred fifteen million, one hundred five thousand, eight hundred sixteen".