1683374401449 has 24 divisors (see below), whose sum is σ = 2618642978952. Its totient is φ = 1035898744320.

The previous prime is 1683374401417. The next prime is 1683374401477. The reversal of 1683374401449 is 9441044733861.

1683374401449 is a `hidden beast` number, since 1 + 68 + 33 + 74 + 40 + 1 + 449 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 50397107049 + 1632977294400 = 224493^2 + 1277880^2 .

It is not a de Polignac number, because 1683374401449 - 2⁵ = 1683374401417 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1683374401395 and 1683374401404.

It is not an unprimeable number, because it can be changed into a prime (1683374401409) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5833249 + ... + 6115025.

It is an arithmetic number, because the mean of its divisors is an integer number (109110124123).

Almost surely, 2^{1683374401449} is an apocalyptic number.

It is an amenable number.

1683374401449 is a deficient number, since it is larger than the sum of its proper divisors (935268577503).

1683374401449 is a wasteful number, since it uses less digits than its factorization.

1683374401449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332857 (or 332854 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 54.

The spelling of 1683374401449 in words is "one trillion, six hundred eighty-three billion, three hundred seventy-four million, four hundred one thousand, four hundred forty-nine".