3268789813971 has 72 divisors (see below), whose sum is σ = 5495992577712. Its totient is φ = 1864256486400.

The previous prime is 3268789813967. The next prime is 3268789813999. The reversal of 3268789813971 is 1793189878623.

3268789813971 is a `hidden beast` number, since 3 + 2 + 6 + 87 + 89 + 81 + 397 + 1 = 666.

It is not a de Polignac number, because 3268789813971 - 2² = 3268789813967 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3268789813971.

It is not an unprimeable number, because it can be changed into a prime (3268789813931) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 181177711 + ... + 181195751.

It is an arithmetic number, because the mean of its divisors is an integer number (76333230246).

Almost surely, 2^{3268789813971} is an apocalyptic number.

3268789813971 is a deficient number, since it is larger than the sum of its proper divisors (2227202763741).

3268789813971 is a wasteful number, since it uses less digits than its factorization.

3268789813971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27873 (or 27859 counting only the distinct ones).

The product of its digits is 219469824, while the sum is 72.

The spelling of 3268789813971 in words is "three trillion, two hundred sixty-eight billion, seven hundred eighty-nine million, eight hundred thirteen thousand, nine hundred seventy-one".