18642242310 has 32 divisors (see below), whose sum is σ = 44744981472. Its totient is φ = 4970864640.

The previous prime is 18642242287. The next prime is 18642242321. The reversal of 18642242310 is 1324224681.

It is a super-2 number, since 2×18642242310² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 680070 + ... + 706950.

It is an arithmetic number, because the mean of its divisors is an integer number (1398280671).

Almost surely, 2^18642242310 is an apocalyptic number.

18642242310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18642242310 is an abundant number, since it is smaller than the sum of its proper divisors (26102739162).

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

18642242310 is a wasteful number, since it uses less digits than its factorization.

18642242310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50008.

The product of its (nonzero) digits is 18432, while the sum is 33.

Adding to 18642242310 its reverse (1324224681), we get a palindrome (19966466991).

The spelling of 18642242310 in words is "eighteen billion, six hundred forty-two million, two hundred forty-two thousand, three hundred ten".