1290223281964 has 6 divisors (see below), whose sum is σ = 2257890743444. Its totient is φ = 645111640980.

The previous prime is 1290223281911. The next prime is 1290223281967. The reversal of 1290223281964 is 4691823220921.

It is a super-2 number, since 2×1290223281964² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1290223281967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161277910242 + ... + 161277910249.

Almost surely, 2^{1290223281964} is an apocalyptic number.

It is an amenable number.

1290223281964 is a deficient number, since it is larger than the sum of its proper divisors (967667461480).

1290223281964 is a wasteful number, since it uses less digits than its factorization.

1290223281964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322555820495 (or 322555820493 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 49.

The spelling of 1290223281964 in words is "one trillion, two hundred ninety billion, two hundred twenty-three million, two hundred eighty-one thousand, nine hundred sixty-four".