617163670247 has 4 divisors (see below), whose sum is σ = 618502420536. Its totient is φ = 615824919960.

The previous prime is 617163670241. The next prime is 617163670271. The reversal of 617163670247 is 742076361716.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 617163670247 - 2⁴ = 617163670231 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 617163670195 and 617163670204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (617163670241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 669374453 + ... + 669375374.

It is an arithmetic number, because the mean of its divisors is an integer number (154625605134).

Almost surely, 2^617163670247 is an apocalyptic number.

617163670247 is a deficient number, since it is larger than the sum of its proper divisors (1338750289).

617163670247 is a wasteful number, since it uses less digits than its factorization.

617163670247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1338750288.

The product of its (nonzero) digits is 1778112, while the sum is 50.

The spelling of 617163670247 in words is "six hundred seventeen billion, one hundred sixty-three million, six hundred seventy thousand, two hundred forty-seven".