19045298984464 has 15 divisors (see below), whose sum is σ = 36900300604143. Its totient is φ = 9522640764048.

The previous prime is 19045298984441. The next prime is 19045298984483. The reversal of 19045298984464 is 46448989254091.

The square root of 19045298984464 is 4364092.

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

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 16910857 + ... + 18001879.

Almost surely, 2^{19045298984464} is an apocalyptic number.

19045298984464 is the 4364092-nd square number.

It is an amenable number.

19045298984464 is a deficient number, since it is larger than the sum of its proper divisors (17855001619679).

19045298984464 is an frugal number, since it uses more digits than its factorization.

19045298984464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2182054 (or 1091025 counting only the distinct ones).

The product of its (nonzero) digits is 716636160, while the sum is 73.

The spelling of 19045298984464 in words is "nineteen trillion, forty-five billion, two hundred ninety-eight million, nine hundred eighty-four thousand, four hundred sixty-four".