20830173613 has 8 divisors (see below), whose sum is σ = 21932355200. Its totient is φ = 19728577728.

The previous prime is 20830173607. The next prime is 20830173647. The reversal of 20830173613 is 31637103802.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20830173613 is a prime.

It is a super-2 number, since 2×20830173613² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20830173713) 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, 72453 + ... + 216586.

It is an arithmetic number, because the mean of its divisors is an integer number (2741544400).

Almost surely, 2^20830173613 is an apocalyptic number.

It is an amenable number.

20830173613 is a deficient number, since it is larger than the sum of its proper divisors (1102181587).

20830173613 is a wasteful number, since it uses less digits than its factorization.

20830173613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292851.

The product of its (nonzero) digits is 18144, while the sum is 34.

The spelling of 20830173613 in words is "twenty billion, eight hundred thirty million, one hundred seventy-three thousand, six hundred thirteen".