30671678081 has 16 divisors (see below), whose sum is σ = 33993848448. Its totient is φ = 27441792000.

The previous prime is 30671678021. The next prime is 30671678113. The reversal of 30671678081 is 18087617603.

It is a cyclic number.

It is not a de Polignac number, because 30671678081 - 2¹⁸ = 30671415937 is a prime.

It is a super-2 number, since 2×30671678081² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30671678021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102881 + ... + 268193.

It is an arithmetic number, because the mean of its divisors is an integer number (2124615528).

Almost surely, 2^30671678081 is an apocalyptic number.

It is an amenable number.

30671678081 is a deficient number, since it is larger than the sum of its proper divisors (3322170367).

30671678081 is a wasteful number, since it uses less digits than its factorization.

30671678081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165592.

The product of its (nonzero) digits is 338688, while the sum is 47.

The spelling of 30671678081 in words is "thirty billion, six hundred seventy-one million, six hundred seventy-eight thousand, eighty-one".