42129583800 has 96 divisors (see below), whose sum is σ = 134131556400. Its totient is φ = 10930913280.

The previous prime is 42129583789. The next prime is 42129583813. The reversal of 42129583800 is 838592124.

It is a super-2 number, since 2×42129583800² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 926665 + ... + 971064.

Almost surely, 2^42129583800 is an apocalyptic number.

42129583800 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42129583800 is an abundant number, since it is smaller than the sum of its proper divisors (92001972600).

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

42129583800 is a wasteful number, since it uses less digits than its factorization.

42129583800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1897785 (or 1897776 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 42.

The spelling of 42129583800 in words is "forty-two billion, one hundred twenty-nine million, five hundred eighty-three thousand, eight hundred".