42112097808 has 160 divisors (see below), whose sum is σ = 129715126272. Its totient is φ = 11623065600.

The previous prime is 42112097759. The next prime is 42112097809. The reversal of 42112097808 is 80879021124.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 42112097808.

It is not an unprimeable number, because it can be changed into a prime (42112097809) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 202585 + ... + 353927.

Almost surely, 2^42112097808 is an apocalyptic number.

42112097808 is a gapful number since it is divisible by the number (48) 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 42112097808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64857563136).

42112097808 is an abundant number, since it is smaller than the sum of its proper divisors (87603028464).

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

42112097808 is a wasteful number, since it uses less digits than its factorization.

42112097808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151413 (or 151407 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 42.

The spelling of 42112097808 in words is "forty-two billion, one hundred twelve million, ninety-seven thousand, eight hundred eight".