3219265961 has 4 divisors (see below), whose sum is σ = 3219489492. Its totient is φ = 3219042432.

The previous prime is 3219265957. The next prime is 3219265963. The reversal of 3219265961 is 1695629123.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1695629123 = 1597 ⋅1061759.

It can be written as a sum of positive squares in 2 ways, for example, as 2596513936 + 622752025 = 50956^2 + 24955^2 .

It is a cyclic number.

It is not a de Polignac number, because 3219265961 - 2² = 3219265957 is a prime.

It is a super-4 number, since 4×3219265961⁴ (a number of 39 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3219265963) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88556 + ... + 119501.

It is an arithmetic number, because the mean of its divisors is an integer number (804872373).

Almost surely, 2^3219265961 is an apocalyptic number.

It is an amenable number.

3219265961 is a deficient number, since it is larger than the sum of its proper divisors (223531).

3219265961 is a wasteful number, since it uses less digits than its factorization.

3219265961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223530.

The product of its digits is 174960, while the sum is 44.

The square root of 3219265961 is about 56738.5755989697. The cubic root of 3219265961 is about 1476.5640345068.

The spelling of 3219265961 in words is "three billion, two hundred nineteen million, two hundred sixty-five thousand, nine hundred sixty-one".