3172292274649 has 9 divisors (see below), whose sum is σ = 3285507206397. Its totient is φ = 3062853015264.

The previous prime is 3172292274601. The next prime is 3172292274653. The reversal of 3172292274649 is 9464722922713.

The square root of 3172292274649 is 1781093.

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

It can be written as a sum of positive squares in 4 ways, for example, as 85004318025 + 3087287956624 = 291555^2 + 1757068^2 .

It is not a de Polignac number, because 3172292274649 - 2¹⁷ = 3172292143577 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3172292274593 and 3172292274602.

It is not an unprimeable number, because it can be changed into a prime (3172292274689) 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 8 ways as a sum of consecutive naturals, for example, 51620989 + ... + 51682405.

Almost surely, 2^{3172292274649} is an apocalyptic number.

3172292274649 is the 1781093-rd square number.

3172292274649 is the 890547-th centered octagonal number.

It is an amenable number.

3172292274649 is a deficient number, since it is larger than the sum of its proper divisors (113214931748).

3172292274649 is an frugal number, since it uses more digits than its factorization.

3172292274649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122892 (or 61446 counting only the distinct ones).

The product of its digits is 18289152, while the sum is 58.

The spelling of 3172292274649 in words is "three trillion, one hundred seventy-two billion, two hundred ninety-two million, two hundred seventy-four thousand, six hundred forty-nine".