42847157646338 has 8 divisors (see below), whose sum is σ = 64275380014860. Its totient is φ = 21422030974720.

The previous prime is 42847157646331. The next prime is 42847157646383. The reversal of 42847157646338 is 83364675174824.

It can be written as a sum of positive squares in 2 ways, for example, as 40634670968089 + 2212486678249 = 6374533^2 + 1487443^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (42847157646331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 773889623 + ... + 773944986.

Almost surely, 2^{42847157646338} is an apocalyptic number.

42847157646338 is a deficient number, since it is larger than the sum of its proper divisors (21428222368522).

42847157646338 is a wasteful number, since it uses less digits than its factorization.

42847157646338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1547848452.

The product of its digits is 650280960, while the sum is 68.

The spelling of 42847157646338 in words is "forty-two trillion, eight hundred forty-seven billion, one hundred fifty-seven million, six hundred forty-six thousand, three hundred thirty-eight".