18338477348 has 24 divisors (see below), whose sum is σ = 32307089472. Its totient is φ = 9107943264.

The previous prime is 18338477341. The next prime is 18338477359. The reversal of 18338477348 is 84377483381.

It is a super-2 number, since 2×18338477348² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18338477293 and 18338477302.

It is not an unprimeable number, because it can be changed into a prime (18338477341) 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, 1353986 + ... + 1367462.

It is an arithmetic number, because the mean of its divisors is an integer number (1346128728).

Almost surely, 2^18338477348 is an apocalyptic number.

It is an amenable number.

18338477348 is a deficient number, since it is larger than the sum of its proper divisors (13968612124).

18338477348 is a wasteful number, since it uses less digits than its factorization.

18338477348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15731 (or 15729 counting only the distinct ones).

The product of its digits is 10838016, while the sum is 56.

The spelling of 18338477348 in words is "eighteen billion, three hundred thirty-eight million, four hundred seventy-seven thousand, three hundred forty-eight".