30671621959 has 12 divisors (see below), whose sum is σ = 33757152408. Its totient is φ = 27847136240.

The previous prime is 30671621957. The next prime is 30671621977. The reversal of 30671621959 is 95912617603.

It is not a de Polignac number, because 30671621959 - 2¹ = 30671621957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30671621951) 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 11 ways as a sum of consecutive naturals, for example, 70429 + ... + 257494.

It is an arithmetic number, because the mean of its divisors is an integer number (2813096034).

Almost surely, 2^30671621959 is an apocalyptic number.

30671621959 is a deficient number, since it is larger than the sum of its proper divisors (3085530449).

30671621959 is a wasteful number, since it uses less digits than its factorization.

30671621959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328718 (or 328707 counting only the distinct ones).

The product of its (nonzero) digits is 612360, while the sum is 49.

The spelling of 30671621959 in words is "thirty billion, six hundred seventy-one million, six hundred twenty-one thousand, nine hundred fifty-nine".