18473465949 has 8 divisors (see below), whose sum is σ = 25155358080. Its totient is φ = 12053608896.

The previous prime is 18473465911. The next prime is 18473465963. The reversal of 18473465949 is 94956437481.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 18473465949 - 2¹¹ = 18473463901 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18473465892 and 18473465901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18473465999) 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 in 7 ways as a sum of consecutive naturals, for example, 65508604 + ... + 65508885.

It is an arithmetic number, because the mean of its divisors is an integer number (3144419760).

Almost surely, 2^18473465949 is an apocalyptic number.

It is an amenable number.

18473465949 is a deficient number, since it is larger than the sum of its proper divisors (6681892131).

18473465949 is a wasteful number, since it uses less digits than its factorization.

18473465949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131017539.

The product of its digits is 26127360, while the sum is 60.

The spelling of 18473465949 in words is "eighteen billion, four hundred seventy-three million, four hundred sixty-five thousand, nine hundred forty-nine".