706245081521 has 12 divisors (see below), whose sum is σ = 835474987440. Its totient is φ = 595092705480.

The previous prime is 706245081511. The next prime is 706245081557. The reversal of 706245081521 is 125180542607.

It is a de Polignac number, because none of the positive numbers 2^k-706245081521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (706245081511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 122142575 + ... + 122148356.

It is an arithmetic number, because the mean of its divisors is an integer number (69622915620).

Almost surely, 2^706245081521 is an apocalyptic number.

It is an amenable number.

706245081521 is a deficient number, since it is larger than the sum of its proper divisors (129229905919).

706245081521 is a wasteful number, since it uses less digits than its factorization.

706245081521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244291004 (or 244290997 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 41.

The spelling of 706245081521 in words is "seven hundred six billion, two hundred forty-five million, eighty-one thousand, five hundred twenty-one".