387678191712 has 96 divisors (see below), whose sum is σ = 1182100840704. Its totient is φ = 108949363200.

The previous prime is 387678191711. The next prime is 387678191729. The reversal of 387678191712 is 217191876783.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387678191711) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4687714 + ... + 4769697.

It is an arithmetic number, because the mean of its divisors is an integer number (12313550424).

Almost surely, 2^387678191712 is an apocalyptic number.

387678191712 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

387678191712 is an abundant number, since it is smaller than the sum of its proper divisors (794422648992).

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

387678191712 is a wasteful number, since it uses less digits than its factorization.

387678191712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9457492 (or 9457484 counting only the distinct ones).

The product of its digits is 7112448, while the sum is 60.

The spelling of 387678191712 in words is "three hundred eighty-seven billion, six hundred seventy-eight million, one hundred ninety-one thousand, seven hundred twelve".