39960368081 has 8 divisors (see below), whose sum is σ = 40083416640. Its totient is φ = 39837504528.

The previous prime is 39960368051. The next prime is 39960368087. The reversal of 39960368081 is 18086306993.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39960368081 is a prime.

It is a super-2 number, since 2×39960368081² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (39960368087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 392780 + ... + 483938.

It is an arithmetic number, because the mean of its divisors is an integer number (5010427080).

Almost surely, 2^39960368081 is an apocalyptic number.

It is an amenable number.

39960368081 is a deficient number, since it is larger than the sum of its proper divisors (123048559).

39960368081 is an equidigital number, since it uses as much as digits as its factorization.

39960368081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92503.

The product of its (nonzero) digits is 1679616, while the sum is 53.

The spelling of 39960368081 in words is "thirty-nine billion, nine hundred sixty million, three hundred sixty-eight thousand, eighty-one".