385988768640 has 160 divisors (see below), whose sum is σ = 1378435770360. Its totient is φ = 102930324480.

The previous prime is 385988768629. The next prime is 385988768681. The reversal of 385988768640 is 46867889583.

385988768640 is a `hidden beast` number, since 385 + 98 + 87 + 6 + 86 + 4 + 0 = 666.

385988768640 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (160).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3671046 + ... + 3774725.

Almost surely, 2^385988768640 is an apocalyptic number.

385988768640 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

385988768640 is an abundant number, since it is smaller than the sum of its proper divisors (992447001720).

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

385988768640 is an equidigital number, since it uses as much as digits as its factorization.

385988768640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7445802 (or 7445781 counting only the distinct ones).

The product of its (nonzero) digits is 557383680, while the sum is 72.

The spelling of 385988768640 in words is "three hundred eighty-five billion, nine hundred eighty-eight million, seven hundred sixty-eight thousand, six hundred forty".