385471826538 has 64 divisors (see below), whose sum is σ = 801461295360. Its totient is φ = 123494976000.

The previous prime is 385471826497. The next prime is 385471826561. The reversal of 385471826538 is 835628174583.

It is a super-2 number, since 2×385471826538² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9823678 + ... + 9862838.

It is an arithmetic number, because the mean of its divisors is an integer number (12522832740).

Almost surely, 2^385471826538 is an apocalyptic number.

385471826538 is an abundant number, since it is smaller than the sum of its proper divisors (415989468822).

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

385471826538 is a wasteful number, since it uses less digits than its factorization.

385471826538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39743.

The product of its digits is 38707200, while the sum is 60.

The spelling of 385471826538 in words is "three hundred eighty-five billion, four hundred seventy-one million, eight hundred twenty-six thousand, five hundred thirty-eight".