870273936561 has 16 divisors (see below), whose sum is σ = 1165275353088. Its totient is φ = 577731243600.

The previous prime is 870273936527. The next prime is 870273936569. The reversal of 870273936561 is 165639372078.

It is not a de Polignac number, because 870273936561 - 2¹³ = 870273928369 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (870273936569) 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 15 ways as a sum of consecutive naturals, for example, 491296 + ... + 1407806.

It is an arithmetic number, because the mean of its divisors is an integer number (72829709568).

Almost surely, 2^870273936561 is an apocalyptic number.

It is an amenable number.

870273936561 is a deficient number, since it is larger than the sum of its proper divisors (295001416527).

870273936561 is a wasteful number, since it uses less digits than its factorization.

870273936561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 917852.

The product of its (nonzero) digits is 11430720, while the sum is 57.

The spelling of 870273936561 in words is "eight hundred seventy billion, two hundred seventy-three million, nine hundred thirty-six thousand, five hundred sixty-one".