387281378050 has 96 divisors (see below), whose sum is σ = 837538715520. Its totient is φ = 130481625600.

The previous prime is 387281378047. The next prime is 387281378123. The reversal of 387281378050 is 50873182783.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 24096117 + ... + 24112183.

It is an arithmetic number, because the mean of its divisors is an integer number (8724361620).

Almost surely, 2^387281378050 is an apocalyptic number.

387281378050 is an abundant number, since it is smaller than the sum of its proper divisors (450257337470).

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

387281378050 is a wasteful number, since it uses less digits than its factorization.

387281378050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17276 (or 17271 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 52.

The spelling of 387281378050 in words is "three hundred eighty-seven billion, two hundred eighty-one million, three hundred seventy-eight thousand, fifty".