7870847083009 has 9 divisors (see below), whose sum is σ = 7888660095747. Its totient is φ = 7853074221504.

The previous prime is 7870847082953. The next prime is 7870847083013. The reversal of 7870847083009 is 9003807480787.

The square root of 7870847083009 is 2805503.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 7441465689025 + 429381393984 = 2727905^2 + 655272^2 .

It is not a de Polignac number, because 7870847083009 - 2²³ = 7870838694401 is a prime.

It is a super-2 number, since 2×7870847083009² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7870847083019) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1343833009 + ... + 1343838865.

Almost surely, 2^{7870847083009} is an apocalyptic number.

7870847083009 is the 2805503-rd square number.

7870847083009 is the 1402752-nd centered octagonal number.

It is an amenable number.

7870847083009 is a deficient number, since it is larger than the sum of its proper divisors (17813012738).

7870847083009 is an frugal number, since it uses more digits than its factorization.

7870847083009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12672 (or 6336 counting only the distinct ones).

The product of its (nonzero) digits is 18966528, while the sum is 61.

The spelling of 7870847083009 in words is "seven trillion, eight hundred seventy billion, eight hundred forty-seven million, eighty-three thousand, nine".