39989574261396 has 36 divisors (see below), whose sum is σ = 101384711960532. Its totient is φ = 13290303608064.

The previous prime is 39989574261389. The next prime is 39989574261419. The reversal of 39989574261396 is 69316247598993.

39989574261396 is a `hidden beast` number, since 3 + 9 + 9 + 8 + 9 + 57 + 426 + 139 + 6 = 666.

39989574261396 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 27435449748996 + 12554124512400 = 5237886^2 + 3543180^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1648090995 + ... + 1648115258.

Almost surely, 2^{39989574261396} is an apocalyptic number.

39989574261396 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

39989574261396 is an abundant number, since it is smaller than the sum of its proper divisors (61395137699136).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

39989574261396 is a wasteful number, since it uses less digits than its factorization.

39989574261396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3296206600 (or 3296206595 counting only the distinct ones).

The product of its digits is 4761711360, while the sum is 81.

The spelling of 39989574261396 in words is "thirty-nine trillion, nine hundred eighty-nine billion, five hundred seventy-four million, two hundred sixty-one thousand, three hundred ninety-six".