387878904012 has 96 divisors (see below), whose sum is σ = 925303764672. Its totient is φ = 126432423936.

The previous prime is 387878903999. The next prime is 387878904013. The reversal of 387878904012 is 210409878783.

It is a super-2 number, since 2×387878904012² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (387878904013) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 131171638 + ... + 131174594.

It is an arithmetic number, because the mean of its divisors is an integer number (9638580882).

Almost surely, 2^387878904012 is an apocalyptic number.

It is an amenable number.

387878904012 is an abundant number, since it is smaller than the sum of its proper divisors (537424860660).

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

387878904012 is a wasteful number, since it uses less digits than its factorization.

387878904012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4267 (or 4265 counting only the distinct ones).

The product of its (nonzero) digits is 5419008, while the sum is 57.

The spelling of 387878904012 in words is "three hundred eighty-seven billion, eight hundred seventy-eight million, nine hundred four thousand, twelve".