10801780105 has 8 divisors (see below), whose sum is σ = 12962694600. Its totient is φ = 8641051776.

The previous prime is 10801780069. The next prime is 10801780109. The reversal of 10801780105 is 50108710801.

It can be written as a sum of positive squares in 4 ways, for example, as 4076361 + 10797703744 = 2019^2 + 103912^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10801780105 - 2¹³ = 10801771913 is a prime.

It is a super-2 number, since 2×10801780105² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10801780109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196501 + ... + 245389.

It is an arithmetic number, because the mean of its divisors is an integer number (1620336825).

Almost surely, 2^10801780105 is an apocalyptic number.

It is an amenable number.

10801780105 is a deficient number, since it is larger than the sum of its proper divisors (2160914495).

10801780105 is an equidigital number, since it uses as much as digits as its factorization.

10801780105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93083.

The product of its (nonzero) digits is 2240, while the sum is 31.

The spelling of 10801780105 in words is "ten billion, eight hundred one million, seven hundred eighty thousand, one hundred five".