1219164888964 has 81 divisors (see below), whose sum is σ = 2424716447223. Its totient is φ = 535958293200.

The previous prime is 1219164888947. The next prime is 1219164888979. The reversal of 1219164888964 is 4698884619121.

The square root of 1219164888964 is 1104158.

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

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1219164888964.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 753034947 + ... + 753036565.

Almost surely, 2^{1219164888964} is an apocalyptic number.

1219164888964 is the 1104158-th square number.

It is an amenable number.

1219164888964 is a deficient number, since it is larger than the sum of its proper divisors (1205551558259).

1219164888964 is an equidigital number, since it uses as much as digits as its factorization.

1219164888964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3326 (or 1663 counting only the distinct ones).

The product of its digits is 47775744, while the sum is 67.

The spelling of 1219164888964 in words is "one trillion, two hundred nineteen billion, one hundred sixty-four million, eight hundred eighty-eight thousand, nine hundred sixty-four".