381952320720 has 160 divisors (see below), whose sum is σ = 1278137836800. Its totient is φ = 94065979392.

The previous prime is 381952320689. The next prime is 381952320731. The reversal of 381952320720 is 27023259183.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1032925 + ... + 1353084.

It is an arithmetic number, because the mean of its divisors is an integer number (7988361480).

Almost surely, 2^381952320720 is an apocalyptic number.

381952320720 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

381952320720 is an abundant number, since it is smaller than the sum of its proper divisors (896185516080).

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

381952320720 is a wasteful number, since it uses less digits than its factorization.

381952320720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2386077 (or 2386071 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 42.

The spelling of 381952320720 in words is "three hundred eighty-one billion, nine hundred fifty-two million, three hundred twenty thousand, seven hundred twenty".