39982961677 has 4 divisors (see below), whose sum is σ = 40037066560. Its totient is φ = 39928856796.

The previous prime is 39982961671. The next prime is 39982961687. The reversal of 39982961677 is 77616928993.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 39982961677 - 2³¹ = 37835478029 is a prime.

It is a super-3 number, since 3×39982961677³ (a number of 33 digits) contains 333 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 (39982961671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27051333 + ... + 27052810.

It is an arithmetic number, because the mean of its divisors is an integer number (10009266640).

Almost surely, 2^39982961677 is an apocalyptic number.

It is an amenable number.

39982961677 is a deficient number, since it is larger than the sum of its proper divisors (54104883).

39982961677 is an equidigital number, since it uses as much as digits as its factorization.

39982961677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54104882.

The product of its digits is 61725888, while the sum is 67.

The spelling of 39982961677 in words is "thirty-nine billion, nine hundred eighty-two million, nine hundred sixty-one thousand, six hundred seventy-seven".