42018550898870 has 128 divisors (see below), whose sum is σ = 96129492221952. Its totient is φ = 12863924928000.

The previous prime is 42018550898867. The next prime is 42018550898879. The reversal of 42018550898870 is 7889805581024.

42018550898870 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 (65).

It is a junction number, because it is equal to n+sod(n) for n = 42018550898797 and 42018550898806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42018550898879) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 68725520 + ... + 69334220.

It is an arithmetic number, because the mean of its divisors is an integer number (751011657984).

Almost surely, 2^{42018550898870} is an apocalyptic number.

42018550898870 is an abundant number, since it is smaller than the sum of its proper divisors (54110941323082).

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

42018550898870 is a wasteful number, since it uses less digits than its factorization.

42018550898870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611206.

The product of its (nonzero) digits is 51609600, while the sum is 65.

The spelling of 42018550898870 in words is "forty-two trillion, eighteen billion, five hundred fifty million, eight hundred ninety-eight thousand, eight hundred seventy".