842712363891 has 32 divisors (see below), whose sum is σ = 1321976678400. Its totient is φ = 528730727040.

The previous prime is 842712363827. The next prime is 842712363923. The reversal of 842712363891 is 198363217248.

It is a happy number.

842712363891 is a `hidden beast` number, since 8 + 4 + 27 + 1 + 236 + 389 + 1 = 666.

It is not a de Polignac number, because 842712363891 - 2⁶ = 842712363827 is a prime.

It is not an unprimeable number, because it can be changed into a prime (842712363991) 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 31 ways as a sum of consecutive naturals, for example, 10291770 + ... + 10373328.

It is an arithmetic number, because the mean of its divisors is an integer number (41311771200).

Almost surely, 2^842712363891 is an apocalyptic number.

842712363891 is a deficient number, since it is larger than the sum of its proper divisors (479264314509).

842712363891 is a wasteful number, since it uses less digits than its factorization.

842712363891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104096 (or 104090 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 54.

The spelling of 842712363891 in words is "eight hundred forty-two billion, seven hundred twelve million, three hundred sixty-three thousand, eight hundred ninety-one".