87441256845 has 12 divisors (see below), whose sum is σ = 151564845276. Its totient is φ = 46635336960.

The previous prime is 87441256841. The next prime is 87441256867. The reversal of 87441256845 is 54865214478.

87441256845 is a `hidden beast` number, since 8 + 74 + 4 + 1 + 2 + 568 + 4 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 60365541636 + 27075715209 = 245694^2 + 164547^2 .

It is not a de Polignac number, because 87441256845 - 2² = 87441256841 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 87441256791 and 87441256800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87441256841) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 971569476 + ... + 971569565.

It is an arithmetic number, because the mean of its divisors is an integer number (12630403773).

Almost surely, 2^87441256845 is an apocalyptic number.

It is an amenable number.

87441256845 is a deficient number, since it is larger than the sum of its proper divisors (64123588431).

87441256845 is a wasteful number, since it uses less digits than its factorization.

87441256845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1943139052 (or 1943139049 counting only the distinct ones).

The product of its digits is 8601600, while the sum is 54.

The spelling of 87441256845 in words is "eighty-seven billion, four hundred forty-one million, two hundred fifty-six thousand, eight hundred forty-five".