42001252049988 has 144 divisors (see below), whose sum is σ = 135945084772224. Its totient is φ = 10614567006720.

The previous prime is 42001252049957. The next prime is 42001252050041. The reversal of 42001252049988 is 88994025210024.

42001252049988 is a `hidden beast` number, since 4 + 2 + 0 + 0 + 125 + 20 + 499 + 8 + 8 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 204653745 + ... + 204858872.

It is an arithmetic number, because the mean of its divisors is an integer number (944063088696).

Almost surely, 2^{42001252049988} is an apocalyptic number.

It is an amenable number.

42001252049988 is an abundant number, since it is smaller than the sum of its proper divisors (93943832722236).

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

42001252049988 is a wasteful number, since it uses less digits than its factorization.

42001252049988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409512682 (or 409512677 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 54.

The spelling of 42001252049988 in words is "forty-two trillion, one billion, two hundred fifty-two million, forty-nine thousand, nine hundred eighty-eight".