18834401450 has 12 divisors (see below), whose sum is σ = 35031986790. Its totient is φ = 7533760560.

The previous prime is 18834401441. The next prime is 18834401459. The reversal of 18834401450 is 5410443881.

It is an interprime number because it is at equal distance from previous prime (18834401441) and next prime (18834401459).

It can be written as a sum of positive squares in 3 ways, for example, as 18024942049 + 809459401 = 134257^2 + 28451^2 .

It is not an unprimeable number, because it can be changed into a prime (18834401459) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 188343965 + ... + 188344064.

Almost surely, 2^18834401450 is an apocalyptic number.

18834401450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18834401450 is a deficient number, since it is larger than the sum of its proper divisors (16197585340).

18834401450 is a wasteful number, since it uses less digits than its factorization.

18834401450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376688041 (or 376688036 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 38.

The spelling of 18834401450 in words is "eighteen billion, eight hundred thirty-four million, four hundred one thousand, four hundred fifty".