19694665740396 has 24 divisors (see below), whose sum is σ = 45957874243120. Its totient is φ = 6564366554112.

The previous prime is 19694665740391. The next prime is 19694665740397. The reversal of 19694665740396 is 69304756649691.

It is not an unprimeable number, because it can be changed into a prime (19694665740391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65096041 + ... + 65397888.

Almost surely, 2^{19694665740396} is an apocalyptic number.

It is an amenable number.

19694665740396 is an abundant number, since it is smaller than the sum of its proper divisors (26263208502724).

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

19694665740396 is a wasteful number, since it uses less digits than its factorization.

19694665740396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130506513 (or 130506511 counting only the distinct ones).

The product of its (nonzero) digits is 1587237120, while the sum is 75.

The spelling of 19694665740396 in words is "nineteen trillion, six hundred ninety-four billion, six hundred sixty-five million, seven hundred forty thousand, three hundred ninety-six".