105487221715 has 32 divisors (see below), whose sum is σ = 129967570944. Its totient is φ = 82168732800.

The previous prime is 105487221691. The next prime is 105487221751. The reversal of 105487221715 is 517122784501.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-105487221715 is a prime.

It is a super-2 number, since 2×105487221715² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11780490 + ... + 11789440.

It is an arithmetic number, because the mean of its divisors is an integer number (4061486592).

Almost surely, 2^105487221715 is an apocalyptic number.

105487221715 is a deficient number, since it is larger than the sum of its proper divisors (24480349229).

105487221715 is a wasteful number, since it uses less digits than its factorization.

105487221715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9427.

The product of its (nonzero) digits is 156800, while the sum is 43.

The spelling of 105487221715 in words is "one hundred five billion, four hundred eighty-seven million, two hundred twenty-one thousand, seven hundred fifteen".