83647923289 has 16 divisors (see below), whose sum is σ = 97140556800. Its totient is φ = 70543584144.

The previous prime is 83647923287. The next prime is 83647923311. The reversal of 83647923289 is 98232974638.

It is a cyclic number.

It is not a de Polignac number, because 83647923289 - 2¹ = 83647923287 is a prime.

It is not an unprimeable number, because it can be changed into a prime (83647923283) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 287202 + ... + 499780.

It is an arithmetic number, because the mean of its divisors is an integer number (6071284800).

Almost surely, 2^83647923289 is an apocalyptic number.

It is an amenable number.

83647923289 is a deficient number, since it is larger than the sum of its proper divisors (13492633511).

83647923289 is a wasteful number, since it uses less digits than its factorization.

83647923289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213492.

The product of its digits is 31352832, while the sum is 61.

The spelling of 83647923289 in words is "eighty-three billion, six hundred forty-seven million, nine hundred twenty-three thousand, two hundred eighty-nine".