2049744846249 has 45 divisors (see below), whose sum is σ = 3078549510861. Its totient is φ = 1359134798760.

The previous prime is 2049744846229. The next prime is 2049744846277. The reversal of 2049744846249 is 9426484479402.

The square root of 2049744846249 is 1431693.

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

2049744846249 is a `hidden beast` number, since 2 + 0 + 4 + 97 + 4 + 48 + 462 + 49 = 666.

It is not a de Polignac number, because 2049744846249 - 2²¹ = 2049742749097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2049744846229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 3491898934 + ... + 3491899520.

Almost surely, 2^{2049744846249} is an apocalyptic number.

2049744846249 is the 1431693-rd square number.

2049744846249 is the 715847-th centered octagonal number.

It is an amenable number.

2049744846249 is a deficient number, since it is larger than the sum of its proper divisors (1028804664612).

2049744846249 is an frugal number, since it uses more digits than its factorization.

2049744846249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1728 (or 861 counting only the distinct ones).

The product of its (nonzero) digits is 111476736, while the sum is 63.

The spelling of 2049744846249 in words is "two trillion, forty-nine billion, seven hundred forty-four million, eight hundred forty-six thousand, two hundred forty-nine".