385554451523 has 16 divisors (see below), whose sum is σ = 422377001280. Its totient is φ = 350307234816.

The previous prime is 385554451493. The next prime is 385554451549. The reversal of 385554451523 is 325154455583.

It is a cyclic number.

It is not a de Polignac number, because 385554451523 - 2¹⁴ = 385554435139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (385554451573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3291386 + ... + 3406512.

It is an arithmetic number, because the mean of its divisors is an integer number (26398562580).

Almost surely, 2^385554451523 is an apocalyptic number.

385554451523 is a deficient number, since it is larger than the sum of its proper divisors (36822549757).

385554451523 is a wasteful number, since it uses less digits than its factorization.

385554451523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121966.

The product of its digits is 7200000, while the sum is 50.

The spelling of 385554451523 in words is "three hundred eighty-five billion, five hundred fifty-four million, four hundred fifty-one thousand, five hundred twenty-three".