42169900256 has 96 divisors (see below), whose sum is σ = 96975779040. Its totient is φ = 17837670400.

The previous prime is 42169900231. The next prime is 42169900259. The reversal of 42169900256 is 65200996124.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42169900259) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 492986 + ... + 572166.

It is an arithmetic number, because the mean of its divisors is an integer number (1010164365).

Almost surely, 2^42169900256 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 42169900256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48487889520).

42169900256 is an abundant number, since it is smaller than the sum of its proper divisors (54805878784).

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

42169900256 is a wasteful number, since it uses less digits than its factorization.

42169900256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79308 (or 79300 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 44.

The spelling of 42169900256 in words is "forty-two billion, one hundred sixty-nine million, nine hundred thousand, two hundred fifty-six".