18652497094469 has 4 divisors (see below), whose sum is σ = 21317139536544. Its totient is φ = 15987854652396.

The previous prime is 18652497094459. The next prime is 18652497094477. The reversal of 18652497094469 is 96449079425681.

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.

It is a cyclic number.

It is not a de Polignac number, because 18652497094469 - 2⁴ = 18652497094453 is a prime.

It is a super-2 number, since 2×18652497094469² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18652497094396 and 18652497094405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18652497094459) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1332321221027 + ... + 1332321221040.

It is an arithmetic number, because the mean of its divisors is an integer number (5329284884136).

Almost surely, 2^{18652497094469} is an apocalyptic number.

It is an amenable number.

18652497094469 is a deficient number, since it is larger than the sum of its proper divisors (2664642442075).

18652497094469 is an equidigital number, since it uses as much as digits as its factorization.

18652497094469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2664642442074.

The product of its (nonzero) digits is 940584960, while the sum is 74.

The spelling of 18652497094469 in words is "eighteen trillion, six hundred fifty-two billion, four hundred ninety-seven million, ninety-four thousand, four hundred sixty-nine".