105842744738 has 4 divisors (see below), whose sum is σ = 158764117110. Its totient is φ = 52921372368.

The previous prime is 105842744713. The next prime is 105842744767. The reversal of 105842744738 is 837447248501.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 104223728569 + 1619016169 = 322837^2 + 40237^2 .

It is a super-2 number, since 2×105842744738² (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 105842744738.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26460686183 + ... + 26460686186.

Almost surely, 2^105842744738 is an apocalyptic number.

105842744738 is a deficient number, since it is larger than the sum of its proper divisors (52921372372).

105842744738 is an equidigital number, since it uses as much as digits as its factorization.

105842744738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52921372371.

The product of its (nonzero) digits is 6021120, while the sum is 53.

The spelling of 105842744738 in words is "one hundred five billion, eight hundred forty-two million, seven hundred forty-four thousand, seven hundred thirty-eight".