18603822136 has 32 divisors (see below), whose sum is σ = 37085571360. Its totient is φ = 8729598592.

The previous prime is 18603822091. The next prime is 18603822137. The reversal of 18603822136 is 63122830681.

It is a super-2 number, since 2×18603822136² (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 (18603822137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 944095 + ... + 963598.

It is an arithmetic number, because the mean of its divisors is an integer number (1158924105).

Almost surely, 2^18603822136 is an apocalyptic number.

It is an amenable number.

18603822136 is a deficient number, since it is larger than the sum of its proper divisors (18481749224).

18603822136 is a wasteful number, since it uses less digits than its factorization.

18603822136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1907775 (or 1907771 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 40.

The spelling of 18603822136 in words is "eighteen billion, six hundred three million, eight hundred twenty-two thousand, one hundred thirty-six".