3977518932384 has 96 divisors (see below), whose sum is σ = 10812522276864. Its totient is φ = 1279403569920.

The previous prime is 3977518932353. The next prime is 3977518932389. The reversal of 3977518932384 is 4832398157793.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (3977518932389) 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 15 ways as a sum of consecutive naturals, for example, 5461872 + ... + 6147119.

It is an arithmetic number, because the mean of its divisors is an integer number (112630440384).

Almost surely, 2^{3977518932384} is an apocalyptic number.

It is an amenable number.

3977518932384 is an abundant number, since it is smaller than the sum of its proper divisors (6835003344480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3977518932384 is a wasteful number, since it uses less digits than its factorization.

3977518932384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11609130 (or 11609122 counting only the distinct ones).

The product of its digits is 274337280, while the sum is 69.

The spelling of 3977518932384 in words is "three trillion, nine hundred seventy-seven billion, five hundred eighteen million, nine hundred thirty-two thousand, three hundred eighty-four".