18602230407 has 4 divisors (see below), whose sum is σ = 24802973880. Its totient is φ = 12401486936.

The previous prime is 18602230397. The next prime is 18602230441. The reversal of 18602230407 is 70403220681.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70403220681 = 3 ⋅23467740227.

It is a cyclic number.

It is not a de Polignac number, because 18602230407 - 2⁴ = 18602230391 is a prime.

It is a super-4 number, since 4×18602230407⁴ (a number of 42 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18602230607) 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, 3100371732 + ... + 3100371737.

It is an arithmetic number, because the mean of its divisors is an integer number (6200743470).

Almost surely, 2^18602230407 is an apocalyptic number.

18602230407 is a deficient number, since it is larger than the sum of its proper divisors (6200743473).

18602230407 is an equidigital number, since it uses as much as digits as its factorization.

18602230407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6200743472.

The product of its (nonzero) digits is 16128, while the sum is 33.

The spelling of 18602230407 in words is "eighteen billion, six hundred two million, two hundred thirty thousand, four hundred seven".