39716845754081 has 4 divisors (see below), whose sum is σ = 39737202929664. Its totient is φ = 39696488578500.

The previous prime is 39716845754071. The next prime is 39716845754087. The reversal of 39716845754081 is 18045754861793.

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 a de Polignac number, because none of the positive numbers 2^k-39716845754081 is a prime.

It is a super-2 number, since 2×39716845754081² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39716845754087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10178584865 + ... + 10178588766.

It is an arithmetic number, because the mean of its divisors is an integer number (9934300732416).

Almost surely, 2^{39716845754081} is an apocalyptic number.

It is an amenable number.

39716845754081 is a deficient number, since it is larger than the sum of its proper divisors (20357175583).

39716845754081 is a wasteful number, since it uses less digits than its factorization.

39716845754081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20357175582.

The product of its (nonzero) digits is 203212800, while the sum is 68.

The spelling of 39716845754081 in words is "thirty-nine trillion, seven hundred sixteen billion, eight hundred forty-five million, seven hundred fifty-four thousand, eighty-one".