105220491738 has 32 divisors (see below), whose sum is σ = 216148888320. Its totient is φ = 34122358080.

The previous prime is 105220491721. The next prime is 105220491797. The reversal of 105220491738 is 837194022501.

It is a super-2 number, since 2×105220491738² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 105220491738.

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, 3889503 + ... + 3916461.

It is an arithmetic number, because the mean of its divisors is an integer number (6754652760).

Almost surely, 2^105220491738 is an apocalyptic number.

105220491738 is an abundant number, since it is smaller than the sum of its proper divisors (110928396582).

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

105220491738 is a wasteful number, since it uses less digits than its factorization.

105220491738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44582.

The product of its (nonzero) digits is 120960, while the sum is 42.

The spelling of 105220491738 in words is "one hundred five billion, two hundred twenty million, four hundred ninety-one thousand, seven hundred thirty-eight".