847944187272 has 96 divisors (see below), whose sum is σ = 2826480646080. Its totient is φ = 223633630080.

The previous prime is 847944187253. The next prime is 847944187291. The reversal of 847944187272 is 272781449748.

847944187272 is a `hidden beast` number, since 8 + 47 + 9 + 441 + 87 + 2 + 72 = 666.

It is an interprime number because it is at equal distance from previous prime (847944187253) and next prime (847944187291).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64702254 + ... + 64715357.

It is an arithmetic number, because the mean of its divisors is an integer number (29442506730).

Almost surely, 2^847944187272 is an apocalyptic number.

It is an amenable number.

847944187272 is an abundant number, since it is smaller than the sum of its proper divisors (1978536458808).

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

847944187272 is a wasteful number, since it uses less digits than its factorization.

847944187272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129417643 (or 129417636 counting only the distinct ones).

The product of its digits is 50577408, while the sum is 63.

The spelling of 847944187272 in words is "eight hundred forty-seven billion, nine hundred forty-four million, one hundred eighty-seven thousand, two hundred seventy-two".