30446591372649 has 27 divisors (see below), whose sum is σ = 46717981271013. Its totient is φ = 19103567035392.

The previous prime is 30446591372621. The next prime is 30446591372677. The reversal of 30446591372649 is 94627319564403.

It is a happy number.

The square root of 30446591372649 is 5517843.

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

30446591372649 is a `hidden beast` number, since 3 + 0 + 4 + 4 + 6 + 591 + 37 + 2 + 6 + 4 + 9 = 666.

It is an interprime number because it is at equal distance from previous prime (30446591372621) and next prime (30446591372677).

It can be written as a sum of positive squares in 4 ways, for example, as 2348534795049 + 28098056577600 = 1532493^2 + 5300760^2 .

It is not a de Polignac number, because 30446591372649 - 2¹⁹ = 30446590848361 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30446591372609) 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, 281355897 + ... + 281464089.

Almost surely, 2^{30446591372649} is an apocalyptic number.

30446591372649 is the 5517843-rd square number.

30446591372649 is the 2758922-nd centered octagonal number.

It is an amenable number.

30446591372649 is a deficient number, since it is larger than the sum of its proper divisors (16271389898364).

30446591372649 is an frugal number, since it uses more digits than its factorization.

30446591372649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216426 (or 108213 counting only the distinct ones).

The product of its (nonzero) digits is 117573120, while the sum is 63.

The spelling of 30446591372649 in words is "thirty trillion, four hundred forty-six billion, five hundred ninety-one million, three hundred seventy-two thousand, six hundred forty-nine".