3219504961 has 4 divisors (see below), whose sum is σ = 3219652692. Its totient is φ = 3219357232.

The previous prime is 3219504943. The next prime is 3219504973. The reversal of 3219504961 is 1694059123.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1694059123 = 14251 ⋅118873.

It can be written as a sum of positive squares in 2 ways, for example, as 2182664961 + 1036840000 = 46719^2 + 32200^2 .

It is a cyclic number.

It is not a de Polignac number, because 3219504961 - 2⁵ = 3219504929 is a prime.

It is a super-2 number, since 2×3219504961² = 20730424387807223042, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3219504941) 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, 34006 + ... + 87151.

It is an arithmetic number, because the mean of its divisors is an integer number (804913173).

Almost surely, 2^3219504961 is an apocalyptic number.

It is an amenable number.

3219504961 is a deficient number, since it is larger than the sum of its proper divisors (147731).

3219504961 is a wasteful number, since it uses less digits than its factorization.

3219504961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147730.

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 3219504961 is about 56740.6817107444. The cubic root of 3219504961 is about 1476.6005738997.

The spelling of 3219504961 in words is "three billion, two hundred nineteen million, five hundred four thousand, nine hundred sixty-one".