1019401199716 has 81 divisors (see below), whose sum is σ = 1909499069779. Its totient is φ = 476144749168.

The previous prime is 1019401199689. The next prime is 1019401199731. The reversal of 1019401199716 is 6179911049101.

The square root of 1019401199716 is 1009654.

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 1019401199716.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 2182871715 + ... + 2182872181.

Almost surely, 2^{1019401199716} is an apocalyptic number.

1019401199716 is the 1009654-th square number.

It is an amenable number.

1019401199716 is a deficient number, since it is larger than the sum of its proper divisors (890097870063).

1019401199716 is an frugal number, since it uses more digits than its factorization.

1019401199716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1078 (or 539 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 49.

Multiplying 1019401199716 by its sum of digits (49), we get a square (49950658786084 = 7067578²).

The spelling of 1019401199716 in words is "one trillion, nineteen billion, four hundred one million, one hundred ninety-nine thousand, seven hundred sixteen".