42847387236842 has 16 divisors (see below), whose sum is σ = 64321499354112. Its totient is φ = 21406891453200.

The previous prime is 42847387236811. The next prime is 42847387236869. The reversal of 42847387236842 is 24863278374824.

It is a happy number.

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, 20512592 + ... + 22504692.

It is an arithmetic number, because the mean of its divisors is an integer number (4020093709632).

Almost surely, 2^{42847387236842} is an apocalyptic number.

42847387236842 is a deficient number, since it is larger than the sum of its proper divisors (21474112117270).

42847387236842 is a wasteful number, since it uses less digits than its factorization.

42847387236842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2000533.

The product of its digits is 693633024, while the sum is 68.

The spelling of 42847387236842 in words is "forty-two trillion, eight hundred forty-seven billion, three hundred eighty-seven million, two hundred thirty-six thousand, eight hundred forty-two".