386243764399 has 4 divisors (see below), whose sum is σ = 386267775264. Its totient is φ = 386219753536.

The previous prime is 386243764393. The next prime is 386243764411. The reversal of 386243764399 is 993467342683.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 386243764399 - 2⁷ = 386243764271 is a prime.

It is a super-4 number, since 4×386243764399⁴ (a number of 47 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 386243764399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (386243764393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11981287 + ... + 12013480.

It is an arithmetic number, because the mean of its divisors is an integer number (96566943816).

Almost surely, 2^386243764399 is an apocalyptic number.

386243764399 is a deficient number, since it is larger than the sum of its proper divisors (24010865).

386243764399 is a wasteful number, since it uses less digits than its factorization.

386243764399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24010864.

The product of its digits is 141087744, while the sum is 64.

The spelling of 386243764399 in words is "three hundred eighty-six billion, two hundred forty-three million, seven hundred sixty-four thousand, three hundred ninety-nine".