42847157817138 has 32 divisors (see below), whose sum is σ = 90127679519232. Its totient is φ = 13560877699200.

The previous prime is 42847157817097. The next prime is 42847157817143. The reversal of 42847157817138 is 83171875174824.

42847157817138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×42847157817138² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2173207723 + ... + 2173227438.

It is an arithmetic number, because the mean of its divisors is an integer number (2816489984976).

Almost surely, 2^{42847157817138} is an apocalyptic number.

42847157817138 is an abundant number, since it is smaller than the sum of its proper divisors (47280521702094).

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

42847157817138 is a wasteful number, since it uses less digits than its factorization.

42847157817138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4346435250.

The product of its digits is 84295680, while the sum is 66.

The spelling of 42847157817138 in words is "forty-two trillion, eight hundred forty-seven billion, one hundred fifty-seven million, eight hundred seventeen thousand, one hundred thirty-eight".