3490780299769 has 9 divisors (see below), whose sum is σ = 4060718827887. Its totient is φ = 2992086189624.

The previous prime is 3490780299763. The next prime is 3490780299823. The reversal of 3490780299769 is 9679920870943.

The square root of 3490780299769 is 1868363.

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

3490780299769 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2030017995369 + 1460762304400 = 1424787^2 + 1208620^2 .

It is not a de Polignac number, because 3490780299769 - 2²¹ = 3490778202617 is a prime.

It is a super-2 number, since 2×3490780299769² (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 (3490780299763) 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, 12945087 + ... + 13211995.

Almost surely, 2^{3490780299769} is an apocalyptic number.

3490780299769 is the 1868363-rd square number.

3490780299769 is the 934182-nd centered octagonal number.

It is an amenable number.

3490780299769 is a deficient number, since it is larger than the sum of its proper divisors (569938528118).

3490780299769 is an frugal number, since it uses more digits than its factorization.

3490780299769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533832 (or 266916 counting only the distinct ones).

The product of its (nonzero) digits is 370355328, while the sum is 73.

The spelling of 3490780299769 in words is "three trillion, four hundred ninety billion, seven hundred eighty million, two hundred ninety-nine thousand, seven hundred sixty-nine".