18452339505690 has 32 divisors (see below), whose sum is σ = 44469372568896. Its totient is φ = 4900206339840.

The previous prime is 18452339505679. The next prime is 18452339505701. The reversal of 18452339505690 is 9650593325481.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (18452339505679) and next prime (18452339505701).

It is a super-2 number, since 2×18452339505690² (a number of 27 digits) contains 22 as substring.

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, 1276088172 + ... + 1276102631.

It is an arithmetic number, because the mean of its divisors is an integer number (1389667892778).

Almost surely, 2^{18452339505690} is an apocalyptic number.

18452339505690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18452339505690 is an abundant number, since it is smaller than the sum of its proper divisors (26017033063206).

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

18452339505690 is a wasteful number, since it uses less digits than its factorization.

18452339505690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2552191054.

The product of its (nonzero) digits is 34992000, while the sum is 60.

The spelling of 18452339505690 in words is "eighteen trillion, four hundred fifty-two billion, three hundred thirty-nine million, five hundred five thousand, six hundred ninety".