18474611692 has 6 divisors (see below), whose sum is σ = 32330570468. Its totient is φ = 9237305844.

The previous prime is 18474611567. The next prime is 18474611693. The reversal of 18474611692 is 29611647481.

It is a super-2 number, since 2×18474611692² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18474611693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2309326458 + ... + 2309326465.

Almost surely, 2^18474611692 is an apocalyptic number.

It is an amenable number.

18474611692 is a deficient number, since it is larger than the sum of its proper divisors (13855958776).

18474611692 is a wasteful number, since it uses less digits than its factorization.

18474611692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4618652927 (or 4618652925 counting only the distinct ones).

The product of its digits is 580608, while the sum is 49.

The spelling of 18474611692 in words is "eighteen billion, four hundred seventy-four million, six hundred eleven thousand, six hundred ninety-two".