30646985903971 has 8 divisors (see below), whose sum is σ = 30866572793088. Its totient is φ = 30428014968000.

The previous prime is 30646985903921. The next prime is 30646985903983. The reversal of 30646985903971 is 17930958964603.

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 30646985903971 - 2¹¹ = 30646985901923 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30646985903971.

It is not an unprimeable number, because it can be changed into a prime (30646985903921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153888420 + ... + 154087441.

It is an arithmetic number, because the mean of its divisors is an integer number (3858321599136).

Almost surely, 2^{30646985903971} is an apocalyptic number.

30646985903971 is a deficient number, since it is larger than the sum of its proper divisors (219586889117).

30646985903971 is a wasteful number, since it uses less digits than its factorization.

30646985903971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307976573.

The product of its (nonzero) digits is 264539520, while the sum is 70.

The spelling of 30646985903971 in words is "thirty trillion, six hundred forty-six billion, nine hundred eighty-five million, nine hundred three thousand, nine hundred seventy-one".