2146684041905 has 8 divisors (see below), whose sum is σ = 2774176300392. Its totient is φ = 1585243600128.

The previous prime is 2146684041851. The next prime is 2146684041907. The reversal of 2146684041905 is 5091404866412.

It can be written as a sum of positive squares in 4 ways, for example, as 192998547856 + 1953685494049 = 439316^2 + 1397743^2 .

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 2146684041905 - 2¹⁶ = 2146683976369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2146684041907) 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, 16512954104 + ... + 16512954233.

It is an arithmetic number, because the mean of its divisors is an integer number (346772037549).

Almost surely, 2^{2146684041905} is an apocalyptic number.

It is an amenable number.

2146684041905 is a deficient number, since it is larger than the sum of its proper divisors (627492258487).

2146684041905 is a wasteful number, since it uses less digits than its factorization.

2146684041905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33025908355.

The product of its (nonzero) digits is 1658880, while the sum is 50.

The spelling of 2146684041905 in words is "two trillion, one hundred forty-six billion, six hundred eighty-four million, forty-one thousand, nine hundred five".