73138875369 has 32 divisors (see below), whose sum is σ = 119131858944. Its totient is φ = 39001480320.

The previous prime is 73138875349. The next prime is 73138875373. The reversal of 73138875369 is 96357883137.

It is not a de Polignac number, because 73138875369 - 2¹³ = 73138867177 is a prime.

It is a super-2 number, since 2×73138875369² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (73138875319) 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 31 ways as a sum of consecutive naturals, for example, 1826859 + ... + 1866464.

It is an arithmetic number, because the mean of its divisors is an integer number (3722870592).

Almost surely, 2^73138875369 is an apocalyptic number.

It is an amenable number.

73138875369 is a deficient number, since it is larger than the sum of its proper divisors (45992983575).

73138875369 is a wasteful number, since it uses less digits than its factorization.

73138875369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3693397.

The product of its digits is 22861440, while the sum is 60.

The spelling of 73138875369 in words is "seventy-three billion, one hundred thirty-eight million, eight hundred seventy-five thousand, three hundred sixty-nine".