1319894889516 has 96 divisors (see below), whose sum is σ = 3959081333760. Its totient is φ = 377112808080.

The previous prime is 1319894889457. The next prime is 1319894889553. The reversal of 1319894889516 is 6159884989131.

1319894889516 is a `hidden beast` number, since 1 + 3 + 1 + 98 + 9 + 488 + 9 + 51 + 6 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10715880 + ... + 10838351.

It is an arithmetic number, because the mean of its divisors is an integer number (41240430560).

Almost surely, 2^{1319894889516} is an apocalyptic number.

It is an amenable number.

1319894889516 is an abundant number, since it is smaller than the sum of its proper divisors (2639186444244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1319894889516 is an equidigital number, since it uses as much as digits as its factorization.

1319894889516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21554263 (or 21554243 counting only the distinct ones).

The product of its digits is 134369280, while the sum is 72.

The spelling of 1319894889516 in words is "one trillion, three hundred nineteen billion, eight hundred ninety-four million, eight hundred eighty-nine thousand, five hundred sixteen".