19697424697 has 8 divisors (see below), whose sum is σ = 21953786400. Its totient is φ = 17563028544.

The previous prime is 19697424653. The next prime is 19697424701. The reversal of 19697424697 is 79642479691.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 19697424697 - 2⁷ = 19697424569 is a prime.

It is not an unprimeable number, because it can be changed into a prime (19697424997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30491047 + ... + 30491692.

It is an arithmetic number, because the mean of its divisors is an integer number (2744223300).

Almost surely, 2^19697424697 is an apocalyptic number.

19697424697 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

19697424697 is a deficient number, since it is larger than the sum of its proper divisors (2256361703).

19697424697 is a wasteful number, since it uses less digits than its factorization.

19697424697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60982775.

The product of its digits is 41150592, while the sum is 64.

The spelling of 19697424697 in words is "nineteen billion, six hundred ninety-seven million, four hundred twenty-four thousand, six hundred ninety-seven".