3705838166489 has 4 divisors (see below), whose sum is σ = 3866961565056. Its totient is φ = 3544714767924.

The previous prime is 3705838166419. The next prime is 3705838166509. The reversal of 3705838166489 is 9846618385073.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 3705838166489 - 2¹⁶ = 3705838100953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3705838166419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80561699249 + ... + 80561699294.

It is an arithmetic number, because the mean of its divisors is an integer number (966740391264).

Almost surely, 2^{3705838166489} is an apocalyptic number.

It is an amenable number.

3705838166489 is a deficient number, since it is larger than the sum of its proper divisors (161123398567).

3705838166489 is a wasteful number, since it uses less digits than its factorization.

3705838166489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161123398566.

The product of its (nonzero) digits is 209018880, while the sum is 68.

The spelling of 3705838166489 in words is "three trillion, seven hundred five billion, eight hundred thirty-eight million, one hundred sixty-six thousand, four hundred eighty-nine".