30881410649 has 8 divisors (see below), whose sum is σ = 31014234888. Its totient is φ = 30748740480.

The previous prime is 30881410633. The next prime is 30881410669. The reversal of 30881410649 is 94601418803.

It can be written as a sum of positive squares in 4 ways, for example, as 4091905024 + 26789505625 = 63968^2 + 163675^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30881410649 - 2⁴ = 30881410633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30881410669) 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, 372599 + ... + 447875.

It is an arithmetic number, because the mean of its divisors is an integer number (3876779361).

Almost surely, 2^30881410649 is an apocalyptic number.

It is an amenable number.

30881410649 is a deficient number, since it is larger than the sum of its proper divisors (132824239).

30881410649 is a wasteful number, since it uses less digits than its factorization.

30881410649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77035.

The product of its (nonzero) digits is 165888, while the sum is 44.

The spelling of 30881410649 in words is "thirty billion, eight hundred eighty-one million, four hundred ten thousand, six hundred forty-nine".