3969942890880 has 64 divisors (see below), whose sum is σ = 12654192970800. Its totient is φ = 1058651437056.

The previous prime is 3969942890861. The next prime is 3969942890917. The reversal of 3969942890880 is 880982499693.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1033837375 + ... + 1033841214.

Almost surely, 2^{3969942890880} is an apocalyptic number.

3969942890880 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3969942890880 is an abundant number, since it is smaller than the sum of its proper divisors (8684250079920).

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

3969942890880 is a wasteful number, since it uses less digits than its factorization.

3969942890880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2067678611 (or 2067678599 counting only the distinct ones).

The product of its (nonzero) digits is 483729408, while the sum is 75.

The spelling of 3969942890880 in words is "three trillion, nine hundred sixty-nine billion, nine hundred forty-two million, eight hundred ninety thousand, eight hundred eighty".