38434468511 has 4 divisors (see below), whose sum is σ = 38450559000. Its totient is φ = 38418378024.

The previous prime is 38434468483. The next prime is 38434468519. The reversal of 38434468511 is 11586443483.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11586443483 = 17 ⋅681555499.

It is a cyclic number.

It is not a de Polignac number, because 38434468511 - 2⁶ = 38434468447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38434468519) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 8041661 + ... + 8046438.

It is an arithmetic number, because the mean of its divisors is an integer number (9612639750).

Almost surely, 2^38434468511 is an apocalyptic number.

38434468511 is a deficient number, since it is larger than the sum of its proper divisors (16090489).

38434468511 is a wasteful number, since it uses less digits than its factorization.

38434468511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16090488.

The product of its digits is 1105920, while the sum is 47.

The spelling of 38434468511 in words is "thirty-eight billion, four hundred thirty-four million, four hundred sixty-eight thousand, five hundred eleven".