42129944416 has 72 divisors (see below), whose sum is σ = 99812275920. Its totient is φ = 17433061632.

The previous prime is 42129944393. The next prime is 42129944431. The reversal of 42129944416 is 61444992124.

It is a super-3 number, since 3×42129944416³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 417780 + ... + 508723.

It is an arithmetic number, because the mean of its divisors is an integer number (1386281610).

Almost surely, 2^42129944416 is an apocalyptic number.

It is an amenable number.

42129944416 is an abundant number, since it is smaller than the sum of its proper divisors (57682331504).

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

42129944416 is a wasteful number, since it uses less digits than its factorization.

42129944416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 926556 (or 926541 counting only the distinct ones).

The product of its digits is 497664, while the sum is 46.

The spelling of 42129944416 in words is "forty-two billion, one hundred twenty-nine million, nine hundred forty-four thousand, four hundred sixteen".