73645108339 has 12 divisors (see below), whose sum is σ = 81107858160. Its totient is φ = 66818510000.

The previous prime is 73645108331. The next prime is 73645108343. The reversal of 73645108339 is 93380154637.

It is not a de Polignac number, because 73645108339 - 2³ = 73645108331 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 73645108292 and 73645108301.

It is not an unprimeable number, because it can be changed into a prime (73645108331) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 536287 + ... + 659464.

It is an arithmetic number, because the mean of its divisors is an integer number (6758988180).

Almost surely, 2^73645108339 is an apocalyptic number.

73645108339 is a deficient number, since it is larger than the sum of its proper divisors (7462749821).

73645108339 is a wasteful number, since it uses less digits than its factorization.

73645108339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1196282 (or 1196271 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 49.

The spelling of 73645108339 in words is "seventy-three billion, six hundred forty-five million, one hundred eight thousand, three hundred thirty-nine".