606671189881 has 9 divisors (see below), whose sum is σ = 611585462511. Its totient is φ = 601796111112.

The previous prime is 606671189857. The next prime is 606671189899. The reversal of 606671189881 is 188981176606.

The square root of 606671189881 is 778891.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 587437938025 + 19233251856 = 766445^2 + 138684^2 .

It is not a de Polignac number, because 606671189881 - 2³¹ = 604523706233 is a prime.

It is a super-2 number, since 2×606671189881² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (606671189821) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 98916091 + ... + 98922223.

It is an arithmetic number, because the mean of its divisors is an integer number (67953940279).

Almost surely, 2^606671189881 is an apocalyptic number.

606671189881 is the 778891-st square number.

606671189881 is the 389446-th centered octagonal number.

It is an amenable number.

606671189881 is a deficient number, since it is larger than the sum of its proper divisors (4914272630).

606671189881 is an frugal number, since it uses more digits than its factorization.

606671189881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12520 (or 6260 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 61.

The spelling of 606671189881 in words is "six hundred six billion, six hundred seventy-one million, one hundred eighty-nine thousand, eight hundred eighty-one".