18213116410 has 8 divisors (see below), whose sum is σ = 32783609556. Its totient is φ = 7285246560.

The previous prime is 18213116401. The next prime is 18213116429. The reversal of 18213116410 is 1461131281.

It can be written as a sum of positive squares in 2 ways, for example, as 17480277369 + 732839041 = 132213^2 + 27071^2 .

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

It is a super-2 number, since 2×18213116410² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 910655811 + ... + 910655830.

Almost surely, 2^18213116410 is an apocalyptic number.

18213116410 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18213116410 is a deficient number, since it is larger than the sum of its proper divisors (14570493146).

18213116410 is a wasteful number, since it uses less digits than its factorization.

18213116410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1821311648.

The product of its (nonzero) digits is 1152, while the sum is 28.

Adding to 18213116410 its reverse (1461131281), we get a palindrome (19674247691).

The spelling of 18213116410 in words is "eighteen billion, two hundred thirteen million, one hundred sixteen thousand, four hundred ten".