1492445825649 has 9 divisors (see below), whose sum is σ = 2155760375353. Its totient is φ = 994961440452.

The previous prime is 1492445825627. The next prime is 1492445825693. The reversal of 1492445825649 is 9465285442941.

The square root of 1492445825649 is 1221657.

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

1492445825649 is a `hidden beast` number, since 1 + 4 + 9 + 2 + 4 + 4 + 582 + 5 + 6 + 49 = 666.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 1492445825649 - 2¹⁷ = 1492445694577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1492445825749) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3461362 + ... + 3868580.

Almost surely, 2^{1492445825649} is an apocalyptic number.

1492445825649 is the 1221657-th square number.

1492445825649 is the 610829-th centered octagonal number.

It is an amenable number.

1492445825649 is a deficient number, since it is larger than the sum of its proper divisors (663314549704).

1492445825649 is an frugal number, since it uses more digits than its factorization.

1492445825649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 814444 (or 407222 counting only the distinct ones).

The product of its digits is 99532800, while the sum is 63.

The spelling of 1492445825649 in words is "one trillion, four hundred ninety-two billion, four hundred forty-five million, eight hundred twenty-five thousand, six hundred forty-nine".