30180001649 has 8 divisors (see below), whose sum is σ = 35195337600. Its totient is φ = 25868572548.

The previous prime is 30180001639. The next prime is 30180001667. The reversal of 30180001649 is 94610008103.

It is a happy number.

It is not a de Polignac number, because 30180001649 - 2¹² = 30179997553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30180001639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43993829 + ... + 43994514.

It is an arithmetic number, because the mean of its divisors is an integer number (4399417200).

Almost surely, 2^30180001649 is an apocalyptic number.

It is an amenable number.

30180001649 is a deficient number, since it is larger than the sum of its proper divisors (5015335951).

30180001649 is an frugal number, since it uses more digits than its factorization.

30180001649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87988364 (or 87988350 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 32.

The spelling of 30180001649 in words is "thirty billion, one hundred eighty million, one thousand, six hundred forty-nine".