39964068745 has 8 divisors (see below), whose sum is σ = 48977241984. Its totient is φ = 31291015344.

The previous prime is 39964068733. The next prime is 39964068751. The reversal of 39964068745 is 54786046993.

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 39964068745 - 2⁹ = 39964068233 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85029699 + ... + 85030168.

It is an arithmetic number, because the mean of its divisors is an integer number (6122155248).

Almost surely, 2^39964068745 is an apocalyptic number.

It is an amenable number.

39964068745 is a deficient number, since it is larger than the sum of its proper divisors (9013173239).

39964068745 is a wasteful number, since it uses less digits than its factorization.

39964068745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170059919.

The product of its (nonzero) digits is 39191040, while the sum is 61.

The spelling of 39964068745 in words is "thirty-nine billion, nine hundred sixty-four million, sixty-eight thousand, seven hundred forty-five".