1723987382049 has 27 divisors (see below), whose sum is σ = 2497903107609. Its totient is φ = 1145782428480.

The previous prime is 1723987382023. The next prime is 1723987382077. The reversal of 1723987382049 is 9402837893271.

The square root of 1723987382049 is 1313007.

It is a perfect power (a square), and thus also a powerful number.

1723987382049 is a `hidden beast` number, since 1 + 7 + 2 + 398 + 7 + 38 + 204 + 9 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 179485253649 + 1544502128400 = 423657^2 + 1242780^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1723987382049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1723987382009) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 2131009957 + ... + 2131010765.

Almost surely, 2^{1723987382049} is an apocalyptic number.

1723987382049 is the 1313007-th square number.

1723987382049 is the 656504-th centered octagonal number.

It is an amenable number.

1723987382049 is a deficient number, since it is larger than the sum of its proper divisors (773915725560).

1723987382049 is an frugal number, since it uses more digits than its factorization.

1723987382049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2706 (or 1353 counting only the distinct ones).

The product of its (nonzero) digits is 36578304, while the sum is 63.

The spelling of 1723987382049 in words is "one trillion, seven hundred twenty-three billion, nine hundred eighty-seven million, three hundred eighty-two thousand, forty-nine".