81430003418 has 8 divisors (see below), whose sum is σ = 122692741248. Its totient is φ = 40532423004.

The previous prime is 81430003381. The next prime is 81430003439.

81430003418 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91288796 + ... + 91289687.

It is an arithmetic number, because the mean of its divisors is an integer number (15336592656).

Almost surely, 2^81430003418 is an apocalyptic number.

81430003418 is a deficient number, since it is larger than the sum of its proper divisors (41262737830).

81430003418 is a wasteful number, since it uses less digits than its factorization.

81430003418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182578708.

The product of its (nonzero) digits is 9216, while the sum is 32.

It can be divided in two parts, 8143000 and 3418, that added together give a palindrome (8146418).

The spelling of 81430003418 in words is "eighty-one billion, four hundred thirty million, three thousand, four hundred eighteen".