38434468512 has 48 divisors (see below), whose sum is σ = 110062344672. Its totient is φ = 11646808320.

The previous prime is 38434468483. The next prime is 38434468519. The reversal of 38434468512 is 21586443483.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

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 (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18197083 + ... + 18199194.

It is an arithmetic number, because the mean of its divisors is an integer number (2292965514).

Almost surely, 2^38434468512 is an apocalyptic number.

38434468512 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

38434468512 is an abundant number, since it is smaller than the sum of its proper divisors (71627876160).

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

38434468512 is a wasteful number, since it uses less digits than its factorization.

38434468512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36396301 (or 36396293 counting only the distinct ones).

The product of its digits is 2211840, while the sum is 48.

The spelling of 38434468512 in words is "thirty-eight billion, four hundred thirty-four million, four hundred sixty-eight thousand, five hundred twelve".