3201978377 has 8 divisors (see below), whose sum is σ = 3496852800. Its totient is φ = 2914042320.

The previous prime is 3201978337. The next prime is 3201978391. The reversal of 3201978377 is 7738791023.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3201978377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3201978337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1733627 + ... + 1735472.

It is an arithmetic number, because the mean of its divisors is an integer number (437106600).

Almost surely, 2^3201978377 is an apocalyptic number.

It is an amenable number.

3201978377 is a deficient number, since it is larger than the sum of its proper divisors (294874423).

3201978377 is a wasteful number, since it uses less digits than its factorization.

3201978377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3469183.

The product of its (nonzero) digits is 444528, while the sum is 47.

The square root of 3201978377 is about 56586.0263404314. The cubic root of 3201978377 is about 1473.9162203603.

The spelling of 3201978377 in words is "three billion, two hundred one million, nine hundred seventy-eight thousand, three hundred seventy-seven".