387271825920 has 1280 divisors, whose sum is σ = 1675035648000. Its totient is φ = 82843140096.

The previous prime is 387271825903. The next prime is 387271825921. The reversal of 387271825920 is 29528172783.

387271825920 is a `hidden beast` number, since 38 + 7 + 2 + 7 + 18 + 2 + 592 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1280).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (387271825921) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 946874676 + ... + 946875084.

It is an arithmetic number, because the mean of its divisors is an integer number (1308621600).

Almost surely, 2^387271825920 is an apocalyptic number.

387271825920 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 387271825920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (837517824000).

387271825920 is an abundant number, since it is smaller than the sum of its proper divisors (1287763822080).

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

387271825920 is a wasteful number, since it uses less digits than its factorization.

387271825920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570 (or 548 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 54.

The spelling of 387271825920 in words is "three hundred eighty-seven billion, two hundred seventy-one million, eight hundred twenty-five thousand, nine hundred twenty".