870426260865 has 96 divisors (see below), whose sum is σ = 1774726886400. Its totient is φ = 386431119360.

The previous prime is 870426260831. The next prime is 870426260867. The reversal of 870426260865 is 568062624078.

870426260865 is a `hidden beast` number, since 8 + 7 + 0 + 4 + 2 + 626 + 0 + 8 + 6 + 5 = 666.

It is not a de Polignac number, because 870426260865 - 2¹³ = 870426252673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (870426260867) 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 95 ways as a sum of consecutive naturals, for example, 1231281 + ... + 1804689.

It is an arithmetic number, because the mean of its divisors is an integer number (18486738400).

Almost surely, 2^870426260865 is an apocalyptic number.

It is an amenable number.

870426260865 is an abundant number, since it is smaller than the sum of its proper divisors (904300625535).

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

870426260865 is a wasteful number, since it uses less digits than its factorization.

870426260865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573567 (or 573564 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 54.

The spelling of 870426260865 in words is "eight hundred seventy billion, four hundred twenty-six million, two hundred sixty thousand, eight hundred sixty-five".