19480754943784 has 8 divisors (see below), whose sum is σ = 36526415519610. Its totient is φ = 9740377471888.

The previous prime is 19480754943781. The next prime is 19480754943823. The reversal of 19480754943784 is 48734945708491.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 15818040296100 + 3662714647684 = 3977190^2 + 1913822^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (19480754943781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1217547183979 + ... + 1217547183994.

Almost surely, 2^{19480754943784} is an apocalyptic number.

It is an amenable number.

19480754943784 is a deficient number, since it is larger than the sum of its proper divisors (17045660575826).

19480754943784 is a wasteful number, since it uses less digits than its factorization.

19480754943784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2435094367979 (or 2435094367975 counting only the distinct ones).

The product of its (nonzero) digits is 975421440, while the sum is 73.

The spelling of 19480754943784 in words is "nineteen trillion, four hundred eighty billion, seven hundred fifty-four million, nine hundred forty-three thousand, seven hundred eighty-four".