870021734431 has 2 divisors, whose sum is σ = 870021734432. Its totient is φ = 870021734430.

The previous prime is 870021734383. The next prime is 870021734453. The reversal of 870021734431 is 134437120078.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 870021734431 - 2²⁷ = 869887516703 is a prime.

It is a super-2 number, since 2×870021734431² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (870028734431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 435010867215 + 435010867216.

It is an arithmetic number, because the mean of its divisors is an integer number (435010867216).

Almost surely, 2^870021734431 is an apocalyptic number.

870021734431 is a deficient number, since it is larger than the sum of its proper divisors (1).

870021734431 is an equidigital number, since it uses as much as digits as its factorization.

870021734431 is an odious number, because the sum of its binary digits is odd.

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

The spelling of 870021734431 in words is "eight hundred seventy billion, twenty-one million, seven hundred thirty-four thousand, four hundred thirty-one".