18490338048 has 576 divisors, whose sum is σ = 65271951360. Its totient is φ = 4508614656.

The previous prime is 18490338011. The next prime is 18490338077. The reversal of 18490338048 is 84083309481.

It is a super-2 number, since 2×18490338048² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 18490337988 and 18490338006.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 93859486 + ... + 93859682.

It is an arithmetic number, because the mean of its divisors is an integer number (113319360).

Almost surely, 2^18490338048 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18490338048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32635975680).

18490338048 is an abundant number, since it is smaller than the sum of its proper divisors (46781613312).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18490338048 is a wasteful number, since it uses less digits than its factorization.

18490338048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332 (or 318 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 48.

The spelling of 18490338048 in words is "eighteen billion, four hundred ninety million, three hundred thirty-eight thousand, forty-eight".