39068064881 has 4 divisors (see below), whose sum is σ = 39899300352. Its totient is φ = 38236829412.

The previous prime is 39068064877. The next prime is 39068064901. The reversal of 39068064881 is 18846086093.

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, and also an emirpimes, since its reverse is a distinct semiprime: 18846086093 = 26119 ⋅721547.

It is a cyclic number.

It is not a de Polignac number, because 39068064881 - 2² = 39068064877 is a prime.

It is a super-2 number, since 2×39068064881² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39068064481) 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, 415617665 + ... + 415617758.

It is an arithmetic number, because the mean of its divisors is an integer number (9974825088).

Almost surely, 2^39068064881 is an apocalyptic number.

It is an amenable number.

39068064881 is a deficient number, since it is larger than the sum of its proper divisors (831235471).

39068064881 is an equidigital number, since it uses as much as digits as its factorization.

39068064881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831235470.

The product of its (nonzero) digits is 1990656, while the sum is 53.

The spelling of 39068064881 in words is "thirty-nine billion, sixty-eight million, sixty-four thousand, eight hundred eighty-one".