385144101898 has 4 divisors (see below), whose sum is σ = 577716152850. Its totient is φ = 192572050948.

The previous prime is 385144101799. The next prime is 385144101899. The reversal of 385144101898 is 898101441583.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 898101441583 = 29 ⋅30969015227.

It can be written as a sum of positive squares in only one way, i.e., 347737834249 + 37406267649 = 589693^2 + 193407^2 .

It is not an unprimeable number, because it can be changed into a prime (385144101899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96286025473 + ... + 96286025476.

Almost surely, 2^385144101898 is an apocalyptic number.

385144101898 is a deficient number, since it is larger than the sum of its proper divisors (192572050952).

385144101898 is a wasteful number, since it uses less digits than its factorization.

385144101898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192572050951.

The product of its (nonzero) digits is 1105920, while the sum is 52.

The spelling of 385144101898 in words is "three hundred eighty-five billion, one hundred forty-four million, one hundred one thousand, eight hundred ninety-eight".