39461979969 has 6 divisors (see below), whose sum is σ = 57000637746. Its totient is φ = 26307986640.

The previous prime is 39461979919. The next prime is 39461980013. The reversal of 39461979969 is 96997916493.

39461979969 is a `hidden beast` number, since 3 + 9 + 461 + 9 + 79 + 96 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 25094361744 + 14367618225 = 158412^2 + 119865^2 .

It is not a de Polignac number, because 39461979969 - 2⁹ = 39461979457 is a prime.

It is a super-2 number, since 2×39461979969² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 39461979897 and 39461979906.

It is not an unprimeable number, because it can be changed into a prime (39461979919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2192332212 + ... + 2192332229.

It is an arithmetic number, because the mean of its divisors is an integer number (9500106291).

Almost surely, 2^39461979969 is an apocalyptic number.

It is an amenable number.

39461979969 is a deficient number, since it is larger than the sum of its proper divisors (17538657777).

39461979969 is a wasteful number, since it uses less digits than its factorization.

39461979969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4384664447 (or 4384664444 counting only the distinct ones).

The product of its digits is 178564176, while the sum is 72.

The spelling of 39461979969 in words is "thirty-nine billion, four hundred sixty-one million, nine hundred seventy-nine thousand, nine hundred sixty-nine".