42878556271312 has 20 divisors (see below), whose sum is σ = 83082190816996. Its totient is φ = 21437990899200.

The previous prime is 42878556271307. The next prime is 42878556271351. The reversal of 42878556271312 is 21317265587824.

It can be written as a sum of positive squares in 2 ways, for example, as 26612144420416 + 16266411850896 = 5158696^2 + 4033164^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80177439 + ... + 80710462.

Almost surely, 2^{42878556271312} is an apocalyptic number.

It is an amenable number.

42878556271312 is a deficient number, since it is larger than the sum of its proper divisors (40203634545684).

42878556271312 is a wasteful number, since it uses less digits than its factorization.

42878556271312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160904566 (or 160904560 counting only the distinct ones).

The product of its digits is 45158400, while the sum is 61.

The spelling of 42878556271312 in words is "forty-two trillion, eight hundred seventy-eight billion, five hundred fifty-six million, two hundred seventy-one thousand, three hundred twelve".