19769896791 has 12 divisors (see below), whose sum is σ = 29541225480. Its totient is φ = 12725450640.

The previous prime is 19769896781. The next prime is 19769896831.

19769896791 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 19769896791 - 2¹⁹ = 19769372503 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19769896711) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37873105 + ... + 37873626.

It is an arithmetic number, because the mean of its divisors is an integer number (2461768790).

Almost surely, 2^19769896791 is an apocalyptic number.

19769896791 is a deficient number, since it is larger than the sum of its proper divisors (9771328689).

19769896791 is a wasteful number, since it uses less digits than its factorization.

19769896791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75746766 (or 75746763 counting only the distinct ones).

The product of its digits is 92588832, while the sum is 72.

The spelling of 19769896791 in words is "nineteen billion, seven hundred sixty-nine million, eight hundred ninety-six thousand, seven hundred ninety-one".