19380974694392 has 64 divisors (see below), whose sum is σ = 36887875200000. Its totient is φ = 9545386032000.

The previous prime is 19380974694377. The next prime is 19380974694397. The reversal of 19380974694392 is 29349647908391.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19380974694397) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 124758767 + ... + 124914017.

It is an arithmetic number, because the mean of its divisors is an integer number (576373050000).

Almost surely, 2^{19380974694392} is an apocalyptic number.

It is an amenable number.

19380974694392 is a deficient number, since it is larger than the sum of its proper divisors (17506900505608).

19380974694392 is a wasteful number, since it uses less digits than its factorization.

19380974694392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156204 (or 156200 counting only the distinct ones).

The product of its (nonzero) digits is 634894848, while the sum is 74.

The spelling of 19380974694392 in words is "nineteen trillion, three hundred eighty billion, nine hundred seventy-four million, six hundred ninety-four thousand, three hundred ninety-two".