3649097088121 has 3 divisors (see below), whose sum is σ = 3649098998383. Its totient is φ = 3649095177860.

The previous prime is 3649097088019. The next prime is 3649097088173. The reversal of 3649097088121 is 1218807909463.

The square root of 3649097088121 is 1910261.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 3378468239721 + 270628848400 = 1838061^2 + 520220^2 .

It is not a de Polignac number, because 3649097088121 - 2¹⁷ = 3649096957049 is a prime.

It is a super-2 number, since 2×3649097088121² (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 (3649097058121) 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 2 ways as a sum of consecutive naturals, for example, 955131 + ... + 2865391.

Almost surely, 2^{3649097088121} is an apocalyptic number.

3649097088121 is the 1910261-st square number.

3649097088121 is the 955131-st centered octagonal number.

It is an amenable number.

3649097088121 is a deficient number, since it is larger than the sum of its proper divisors (1910262).

3649097088121 is an frugal number, since it uses more digits than its factorization.

3649097088121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3820522 (or 1910261 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 58.

The spelling of 3649097088121 in words is "three trillion, six hundred forty-nine billion, ninety-seven million, eighty-eight thousand, one hundred twenty-one".