3261513969 has 12 divisors (see below), whose sum is σ = 5384086656. Its totient is φ = 1863722232.

The previous prime is 3261513949. The next prime is 3261513991. The reversal of 3261513969 is 9693151623.

It is not a de Polignac number, because 3261513969 - 2¹² = 3261509873 is a prime.

It is a super-2 number, since 2×3261513969² = 21274946739964265922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3261513949) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25884969 + ... + 25885094.

It is an arithmetic number, because the mean of its divisors is an integer number (448673888).

Almost surely, 2^3261513969 is an apocalyptic number.

It is an amenable number.

3261513969 is a deficient number, since it is larger than the sum of its proper divisors (2122572687).

3261513969 is a wasteful number, since it uses less digits than its factorization.

3261513969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51770076 (or 51770073 counting only the distinct ones).

The product of its digits is 262440, while the sum is 45.

The square root of 3261513969 is about 57109.6661608173. Note that the first 3 decimals coincide. The cubic root of 3261513969 is about 1482.9952078297.

The spelling of 3261513969 in words is "three billion, two hundred sixty-one million, five hundred thirteen thousand, nine hundred sixty-nine".