385280807141856 has 96 divisors (see below), whose sum is σ = 1011718902096000. Its totient is φ = 128381638069760.

The previous prime is 385280807141819. The next prime is 385280807141861. The reversal of 385280807141856 is 658141708082583.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3325370455 + ... + 3325486313.

It is an arithmetic number, because the mean of its divisors is an integer number (10538738563500).

Almost surely, 2^{385280807141856} is an apocalyptic number.

It is an amenable number.

385280807141856 is an abundant number, since it is smaller than the sum of its proper divisors (626438094954144).

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

385280807141856 is a wasteful number, since it uses less digits than its factorization.

385280807141856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127792 (or 127784 counting only the distinct ones).

The product of its (nonzero) digits is 103219200, while the sum is 66.

The spelling of 385280807141856 in words is "three hundred eighty-five trillion, two hundred eighty billion, eight hundred seven million, one hundred forty-one thousand, eight hundred fifty-six".