387281933274992 has 40 divisors (see below), whose sum is σ = 868407951667200. Its totient is φ = 163876984420032.

The previous prime is 387281933274991. The next prime is 387281933275009. The reversal of 387281933274992 is 299472339182783.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387281933274991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21885272192 + ... + 21885289887.

It is an arithmetic number, because the mean of its divisors is an integer number (21710198791680).

Almost surely, 2^{387281933274992} is an apocalyptic number.

It is an amenable number.

387281933274992 is an abundant number, since it is smaller than the sum of its proper divisors (481126018392208).

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

387281933274992 is a wasteful number, since it uses less digits than its factorization.

387281933274992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43770562173 (or 43770562167 counting only the distinct ones).

The product of its digits is 1975228416, while the sum is 77.

The spelling of 387281933274992 in words is "three hundred eighty-seven trillion, two hundred eighty-one billion, nine hundred thirty-three million, two hundred seventy-four thousand, nine hundred ninety-two".