105215421238382 has 64 divisors (see below), whose sum is σ = 198995406390144. Its totient is φ = 40605635266560.

The previous prime is 105215421238363. The next prime is 105215421238397. The reversal of 105215421238382 is 283832124512501.

It is a super-2 number, since 2×105215421238382² (a number of 29 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 31 ways as a sum of consecutive naturals, for example, 107960138 + ... + 108930354.

It is an arithmetic number, because the mean of its divisors is an integer number (3109303224846).

Almost surely, 2^{105215421238382} is an apocalyptic number.

105215421238382 is a deficient number, since it is larger than the sum of its proper divisors (93779985151762).

105215421238382 is a wasteful number, since it uses less digits than its factorization.

105215421238382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 984813.

The product of its (nonzero) digits is 921600, while the sum is 47.

The spelling of 105215421238382 in words is "one hundred five trillion, two hundred fifteen billion, four hundred twenty-one million, two hundred thirty-eight thousand, three hundred eighty-two".