18349643046 has 32 divisors (see below), whose sum is σ = 41953379328. Its totient is φ = 5241337920.

The previous prime is 18349643033. The next prime is 18349643047. The reversal of 18349643046 is 64034694381.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 18349642986 and 18349643004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18349643047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103426 + ... + 217706.

It is an arithmetic number, because the mean of its divisors is an integer number (1311043104).

Almost surely, 2^18349643046 is an apocalyptic number.

18349643046 is an abundant number, since it is smaller than the sum of its proper divisors (23603736282).

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

18349643046 is a wasteful number, since it uses less digits than its factorization.

18349643046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118116.

The product of its (nonzero) digits is 1492992, while the sum is 48.

The spelling of 18349643046 in words is "eighteen billion, three hundred forty-nine million, six hundred forty-three thousand, forty-six".