870217340431 has 4 divisors (see below), whose sum is σ = 872345011600. Its totient is φ = 868089669264.

The previous prime is 870217340411. The next prime is 870217340477. The reversal of 870217340431 is 134043712078.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 870217340431 - 2⁹ = 870217339919 is a prime.

It is a super-2 number, since 2×870217340431² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (870217340411) 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, 1063834971 + ... + 1063835788.

It is an arithmetic number, because the mean of its divisors is an integer number (218086252900).

Almost surely, 2^870217340431 is an apocalyptic number.

870217340431 is a deficient number, since it is larger than the sum of its proper divisors (2127671169).

870217340431 is a wasteful number, since it uses less digits than its factorization.

870217340431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2127671168.

The product of its (nonzero) digits is 112896, while the sum is 40.

The spelling of 870217340431 in words is "eight hundred seventy billion, two hundred seventeen million, three hundred forty thousand, four hundred thirty-one".