847940816156 has 24 divisors (see below), whose sum is σ = 1697947307616. Its totient is φ = 362960562240.

The previous prime is 847940816153. The next prime is 847940816201. The reversal of 847940816156 is 651618049748.

It is a junction number, because it is equal to n+sod(n) for n = 847940816095 and 847940816104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (847940816153) 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 7 ways as a sum of consecutive naturals, for example, 18420131 + ... + 18466106.

It is an arithmetic number, because the mean of its divisors is an integer number (70747804484).

Almost surely, 2^847940816156 is an apocalyptic number.

It is an amenable number.

847940816156 is an abundant number, since it is smaller than the sum of its proper divisors (850006491460).

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

847940816156 is a wasteful number, since it uses less digits than its factorization.

847940816156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36887069 (or 36887067 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 59.

The spelling of 847940816156 in words is "eight hundred forty-seven billion, nine hundred forty million, eight hundred sixteen thousand, one hundred fifty-six".