870617773488081 has 4 divisors (see below), whose sum is σ = 1160823697984112. Its totient is φ = 580411848992052.

The previous prime is 870617773488079. The next prime is 870617773488083. The reversal of 870617773488081 is 180884377716078.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (870617773488079) and next prime (870617773488083).

It is not a de Polignac number, because 870617773488081 - 2¹ = 870617773488079 is a prime.

It is a super-2 number, since 2×870617773488081² (a number of 31 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 870617773487994 and 870617773488012.

It is not an unprimeable number, because it can be changed into a prime (870617773488083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145102962248011 + ... + 145102962248016.

It is an arithmetic number, because the mean of its divisors is an integer number (290205924496028).

Almost surely, 2^{870617773488081} is an apocalyptic number.

It is an amenable number.

870617773488081 is a deficient number, since it is larger than the sum of its proper divisors (290205924496031).

870617773488081 is a wasteful number, since it uses less digits than its factorization.

870617773488081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290205924496030.

The product of its (nonzero) digits is 708083712, while the sum is 75.

The spelling of 870617773488081 in words is "eight hundred seventy trillion, six hundred seventeen billion, seven hundred seventy-three million, four hundred eighty-eight thousand, eighty-one".