42755015895040 has 96 divisors (see below), whose sum is σ = 102783903211080. Its totient is φ = 17069178880000.

The previous prime is 42755015895023. The next prime is 42755015895043. The reversal of 42755015895040 is 4059851055724.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 24734787134464 + 18020228760576 = 4973408^2 + 4245024^2 .

It is not an unprimeable number, because it can be changed into a prime (42755015895043) 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, 1328040 + ... + 9342040.

Almost surely, 2^{42755015895040} is an apocalyptic number.

42755015895040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42755015895040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51391951605540).

42755015895040 is an abundant number, since it is smaller than the sum of its proper divisors (60028887316040).

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

42755015895040 is an equidigital number, since it uses as much as digits as its factorization.

42755015895040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8014549 (or 8014529 counting only the distinct ones).

The product of its (nonzero) digits is 10080000, while the sum is 55.

The spelling of 42755015895040 in words is "forty-two trillion, seven hundred fifty-five billion, fifteen million, eight hundred ninety-five thousand, forty".