42142155453512 has 32 divisors (see below), whose sum is σ = 79078121311800. Its totient is φ = 21054662843904.

The previous prime is 42142155453469. The next prime is 42142155453533. The reversal of 42142155453512 is 21535455124124.

It can be written as a sum of positive squares in 4 ways, for example, as 35173368549796 + 6968786903716 = 5930714^2 + 2639846^2 .

It is a super-2 number, since 2×42142155453512² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52563914 + ... + 53359622.

Almost surely, 2^{42142155453512} is an apocalyptic number.

It is an amenable number.

42142155453512 is a deficient number, since it is larger than the sum of its proper divisors (36935965858288).

42142155453512 is a wasteful number, since it uses less digits than its factorization.

42142155453512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800865 (or 800861 counting only the distinct ones).

The product of its digits is 960000, while the sum is 44.

The spelling of 42142155453512 in words is "forty-two trillion, one hundred forty-two billion, one hundred fifty-five million, four hundred fifty-three thousand, five hundred twelve".