18035215383405 has 64 divisors (see below), whose sum is σ = 31860504023040. Its totient is φ = 8711095849280.

The previous prime is 18035215383379. The next prime is 18035215383413. The reversal of 18035215383405 is 50438351253081.

It is not a de Polignac number, because 18035215383405 - 2¹⁶ = 18035215317869 is a prime.

It is a super-2 number, since 2×18035215383405² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3533416 + ... + 6968174.

It is an arithmetic number, because the mean of its divisors is an integer number (497820375360).

Almost surely, 2^{18035215383405} is an apocalyptic number.

18035215383405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18035215383405 is a deficient number, since it is larger than the sum of its proper divisors (13825288639635).

18035215383405 is a wasteful number, since it uses less digits than its factorization.

18035215383405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3435063 (or 3435041 counting only the distinct ones).

The product of its (nonzero) digits is 1728000, while the sum is 48.

The spelling of 18035215383405 in words is "eighteen trillion, thirty-five billion, two hundred fifteen million, three hundred eighty-three thousand, four hundred five".