3972999029388 has 12 divisors (see below), whose sum is σ = 9270331068600. Its totient is φ = 1324333009792.

The previous prime is 3972999029383. The next prime is 3972999029393. The reversal of 3972999029388 is 8839209992793.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3972999029383) and next prime (3972999029393).

It is a tau number, because it is divible by the number of its divisors (12).

It is a partition number, being equal to the number of ways a set of 200 identical objects can be partitioned into subset.

It is not an unprimeable number, because it can be changed into a prime (3972999029383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165541626213 + ... + 165541626236.

It is an arithmetic number, because the mean of its divisors is an integer number (772527589050).

Almost surely, 2^{3972999029388} is an apocalyptic number.

It is an amenable number.

3972999029388 is an abundant number, since it is smaller than the sum of its proper divisors (5297332039212).

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

3972999029388 is a wasteful number, since it uses less digits than its factorization.

3972999029388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331083252456 (or 331083252454 counting only the distinct ones).

The product of its (nonzero) digits is 952342272, while the sum is 78.

The spelling of 3972999029388 in words is "three trillion, nine hundred seventy-two billion, nine hundred ninety-nine million, twenty-nine thousand, three hundred eighty-eight".