385136312320 has 60 divisors (see below), whose sum is σ = 924299137944. Its totient is φ = 154054492160.

The previous prime is 385136312291. The next prime is 385136312377. The reversal of 385136312320 is 23213631583.

It is a self number, because there is not a number n which added to its sum of digits gives 385136312320.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2268766 + ... + 2432605.

Almost surely, 2^385136312320 is an apocalyptic number.

It is an amenable number.

385136312320 is an abundant number, since it is smaller than the sum of its proper divisors (539162825624).

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

385136312320 is an frugal number, since it uses more digits than its factorization.

385136312320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4701404 (or 4701378 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 37.

It can be divided in two parts, 3851363 and 12320, that added together give a palindrome (3863683).

The spelling of 385136312320 in words is "three hundred eighty-five billion, one hundred thirty-six million, three hundred twelve thousand, three hundred twenty".