39880676981 has 8 divisors (see below), whose sum is σ = 43333843200. Its totient is φ = 36562929120.

The previous prime is 39880676933. The next prime is 39880676987. The reversal of 39880676981 is 18967608893.

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

It is a cyclic number.

It is not a de Polignac number, because 39880676981 - 2¹⁸ = 39880414837 is a prime.

It is a super-2 number, since 2×39880676981² (a number of 22 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 (39880676987) 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 7 ways as a sum of consecutive naturals, for example, 33853976 + ... + 33855153.

It is an arithmetic number, because the mean of its divisors is an integer number (5416730400).

Almost surely, 2^39880676981 is an apocalyptic number.

39880676981 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

39880676981 is a deficient number, since it is larger than the sum of its proper divisors (3453166219).

39880676981 is a wasteful number, since it uses less digits than its factorization.

39880676981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67709179.

The product of its (nonzero) digits is 31352832, while the sum is 65.

The spelling of 39880676981 in words is "thirty-nine billion, eight hundred eighty million, six hundred seventy-six thousand, nine hundred eighty-one".