18469006197 has 4 divisors (see below), whose sum is σ = 24625341600. Its totient is φ = 12312670796.

The previous prime is 18469006189. The next prime is 18469006217. The reversal of 18469006197 is 79160096481.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 79160096481 = 3 ⋅26386698827.

It is a cyclic number.

It is not a de Polignac number, because 18469006197 - 2³ = 18469006189 is a prime.

It is a super-2 number, since 2×18469006197² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18469006597) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3078167697 + ... + 3078167702.

It is an arithmetic number, because the mean of its divisors is an integer number (6156335400).

Almost surely, 2^18469006197 is an apocalyptic number.

It is an amenable number.

18469006197 is a deficient number, since it is larger than the sum of its proper divisors (6156335403).

18469006197 is an equidigital number, since it uses as much as digits as its factorization.

18469006197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6156335402.

The product of its (nonzero) digits is 653184, while the sum is 51.

The spelling of 18469006197 in words is "eighteen billion, four hundred sixty-nine million, six thousand, one hundred ninety-seven".