4123938440161 has 8 divisors (see below), whose sum is σ = 4134550137984. Its totient is φ = 4113328372800.

The previous prime is 4123938440131. The next prime is 4123938440179. The reversal of 4123938440161 is 1610448393214.

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 4123938440161 - 2⁵ = 4123938440129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4123938440131) 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, 4741020 + ... + 5543026.

It is an arithmetic number, because the mean of its divisors is an integer number (516818767248).

Almost surely, 2^{4123938440161} is an apocalyptic number.

It is an amenable number.

4123938440161 is a deficient number, since it is larger than the sum of its proper divisors (10611697823).

4123938440161 is a wasteful number, since it uses less digits than its factorization.

4123938440161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 815231.

The product of its (nonzero) digits is 497664, while the sum is 46.

The spelling of 4123938440161 in words is "four trillion, one hundred twenty-three billion, nine hundred thirty-eight million, four hundred forty thousand, one hundred sixty-one".