18098589962 has 4 divisors (see below), whose sum is σ = 27147884946. Its totient is φ = 9049294980.

The previous prime is 18098589959. The next prime is 18098589967. The reversal of 18098589962 is 26998589081.

It is a Cunningham number, because it is equal to 134531²+1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 26998589081 = 61 ⋅442599821.

It can be written as a sum of positive squares in only one way, i.e., 18098589961 + 1 = 134531^2 + 1^2 .

It is a super-2 number, since 2×18098589962² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18098589967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4524647489 + ... + 4524647492.

Almost surely, 2^18098589962 is an apocalyptic number.

18098589962 is a deficient number, since it is larger than the sum of its proper divisors (9049294984).

18098589962 is an equidigital number, since it uses as much as digits as its factorization.

18098589962 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9049294983.

The product of its (nonzero) digits is 22394880, while the sum is 65.

The spelling of 18098589962 in words is "eighteen billion, ninety-eight million, five hundred eighty-nine thousand, nine hundred sixty-two".