18097349697 has 16 divisors (see below), whose sum is σ = 30641015680. Its totient is φ = 10341342576.

The previous prime is 18097349687. The next prime is 18097349723. The reversal of 18097349697 is 79694379081.

It is not a de Polignac number, because 18097349697 - 2¹⁰ = 18097348673 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18097349657) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47876398 + ... + 47876775.

It is an arithmetic number, because the mean of its divisors is an integer number (1915063480).

Almost surely, 2^18097349697 is an apocalyptic number.

It is an amenable number.

18097349697 is a deficient number, since it is larger than the sum of its proper divisors (12543665983).

18097349697 is an equidigital number, since it uses as much as digits as its factorization.

18097349697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95753189 (or 95753183 counting only the distinct ones).

The product of its (nonzero) digits is 20575296, while the sum is 63.

The spelling of 18097349697 in words is "eighteen billion, ninety-seven million, three hundred forty-nine thousand, six hundred ninety-seven".