3992873395887 has 24 divisors (see below), whose sum is σ = 5792575430928. Its totient is φ = 2650357670400.

The previous prime is 3992873395883. The next prime is 3992873395891. The reversal of 3992873395887 is 7885933782993.

3992873395887 is a `hidden beast` number, since 3 + 9 + 9 + 28 + 7 + 3 + 3 + 9 + 588 + 7 = 666.

It is an interprime number because it is at equal distance from previous prime (3992873395883) and next prime (3992873395891).

It is not a de Polignac number, because 3992873395887 - 2² = 3992873395883 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3992873395883) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1149312 + ... + 3050682.

It is an arithmetic number, because the mean of its divisors is an integer number (241357309622).

Almost surely, 2^{3992873395887} is an apocalyptic number.

3992873395887 is a deficient number, since it is larger than the sum of its proper divisors (1799702035041).

3992873395887 is a wasteful number, since it uses less digits than its factorization.

3992873395887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1902391 (or 1902388 counting only the distinct ones).

The product of its digits is 4938071040, while the sum is 81.

The spelling of 3992873395887 in words is "three trillion, nine hundred ninety-two billion, eight hundred seventy-three million, three hundred ninety-five thousand, eight hundred eighty-seven".