42012535553512 has 8 divisors (see below), whose sum is σ = 78773504162850. Its totient is φ = 21006267776752.

The previous prime is 42012535553479. The next prime is 42012535553519. The reversal of 42012535553512 is 21535553521024.

It can be written as a sum of positive squares in only one way, i.e., 24238941969636 + 17773593583876 = 4923306^2 + 4215874^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (42012535553519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2625783472087 + ... + 2625783472102.

Almost surely, 2^{42012535553512} is an apocalyptic number.

It is an amenable number.

42012535553512 is a deficient number, since it is larger than the sum of its proper divisors (36760968609338).

42012535553512 is a wasteful number, since it uses less digits than its factorization.

42012535553512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5251566944195 (or 5251566944191 counting only the distinct ones).

The product of its (nonzero) digits is 900000, while the sum is 43.

The spelling of 42012535553512 in words is "forty-two trillion, twelve billion, five hundred thirty-five million, five hundred fifty-three thousand, five hundred twelve".