18346277460 has 48 divisors (see below), whose sum is σ = 58708089216. Its totient is φ = 4193434752.

The previous prime is 18346277407. The next prime is 18346277473. The reversal of 18346277460 is 6477264381.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21840387 + ... + 21841226.

It is an arithmetic number, because the mean of its divisors is an integer number (1223085192).

Almost surely, 2^18346277460 is an apocalyptic number.

18346277460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18346277460 is an abundant number, since it is smaller than the sum of its proper divisors (40361811756).

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

18346277460 is a wasteful number, since it uses less digits than its factorization.

18346277460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43681632 (or 43681630 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 48.

The spelling of 18346277460 in words is "eighteen billion, three hundred forty-six million, two hundred seventy-seven thousand, four hundred sixty".