105380538949 has 16 divisors (see below), whose sum is σ = 125686241280. Its totient is φ = 86388611760.

The previous prime is 105380538941. The next prime is 105380539001. The reversal of 105380538949 is 949835083501.

It is a cyclic number.

It is not a de Polignac number, because 105380538949 - 2³ = 105380538941 is a prime.

It is a super-2 number, since 2×105380538949² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 105380538949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105380538941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1496862 + ... + 1565680.

It is an arithmetic number, because the mean of its divisors is an integer number (7855390080).

Almost surely, 2^105380538949 is an apocalyptic number.

It is an amenable number.

105380538949 is a deficient number, since it is larger than the sum of its proper divisors (20305702331).

105380538949 is an equidigital number, since it uses as much as digits as its factorization.

105380538949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78360.

The product of its (nonzero) digits is 4665600, while the sum is 55.

The spelling of 105380538949 in words is "one hundred five billion, three hundred eighty million, five hundred thirty-eight thousand, nine hundred forty-nine".