706650247521 has 12 divisors (see below), whose sum is σ = 1034699450148. Its totient is φ = 464646737664.

The previous prime is 706650247493. The next prime is 706650247559. The reversal of 706650247521 is 125742056607.

706650247521 is a `hidden beast` number, since 70 + 6 + 6 + 50 + 2 + 4 + 7 + 521 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 281441921121 + 425208326400 = 530511^2 + 652080^2 .

It is not a de Polignac number, because 706650247521 - 2²³ = 706641858913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (706650247621) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 537784920 + ... + 537786233.

It is an arithmetic number, because the mean of its divisors is an integer number (86224954179).

Almost surely, 2^706650247521 is an apocalyptic number.

It is an amenable number.

706650247521 is a deficient number, since it is larger than the sum of its proper divisors (328049202627).

706650247521 is a wasteful number, since it uses less digits than its factorization.

706650247521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1075571232 (or 1075571229 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 45.

The spelling of 706650247521 in words is "seven hundred six billion, six hundred fifty million, two hundred forty-seven thousand, five hundred twenty-one".