385525985643 has 8 divisors (see below), whose sum is σ = 571149608400. Its totient is φ = 257017323744.

The previous prime is 385525985641. The next prime is 385525985659. The reversal of 385525985643 is 346589525583.

It is a happy number.

385525985643 is a `hidden beast` number, since 38 + 5 + 5 + 2 + 598 + 5 + 6 + 4 + 3 = 666.

385525985643 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 385525985643 - 2¹ = 385525985641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (385525985641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7139370078 + ... + 7139370131.

It is an arithmetic number, because the mean of its divisors is an integer number (71393701050).

Almost surely, 2^385525985643 is an apocalyptic number.

385525985643 is a deficient number, since it is larger than the sum of its proper divisors (185623622757).

385525985643 is a wasteful number, since it uses less digits than its factorization.

385525985643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14278740218 (or 14278740212 counting only the distinct ones).

The product of its digits is 155520000, while the sum is 63.

The spelling of 385525985643 in words is "three hundred eighty-five billion, five hundred twenty-five million, nine hundred eighty-five thousand, six hundred forty-three".