3122702491689 has 27 divisors (see below), whose sum is σ = 4957992136279. Its totient is φ = 1892511622320.

The previous prime is 3122702491681. The next prime is 3122702491703. The reversal of 3122702491689 is 9861942072213.

The square root of 3122702491689 is 1767117.

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

3122702491689 is a `hidden beast` number, since 3 + 1 + 2 + 2 + 70 + 2 + 491 + 6 + 89 = 666.

It can be written as a sum of positive squares in only one way, i.e., 19679320089 + 3103023171600 = 140283^2 + 1761540^2 .

It is not a de Polignac number, because 3122702491689 - 2³ = 3122702491681 is a prime.

It is a super-2 number, since 2×3122702491689² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3122702491681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 58288087 + ... + 58341635.

Almost surely, 2^{3122702491689} is an apocalyptic number.

3122702491689 is the 1767117-th square number.

3122702491689 is the 883559-th centered octagonal number.

It is an amenable number.

3122702491689 is a deficient number, since it is larger than the sum of its proper divisors (1835289644590).

3122702491689 is an frugal number, since it uses more digits than its factorization.

3122702491689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107126 (or 53563 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The spelling of 3122702491689 in words is "three trillion, one hundred twenty-two billion, seven hundred two million, four hundred ninety-one thousand, six hundred eighty-nine".