39345657899 has 4 divisors (see below), whose sum is σ = 39347165136. Its totient is φ = 39344150664.

The previous prime is 39345657887. The next prime is 39345657931. The reversal of 39345657899 is 99875654393.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 39345657899 - 2¹² = 39345653803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39345657499) 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, 713759 + ... + 766904.

It is an arithmetic number, because the mean of its divisors is an integer number (9836791284).

Almost surely, 2^39345657899 is an apocalyptic number.

39345657899 is a deficient number, since it is larger than the sum of its proper divisors (1507237).

39345657899 is a wasteful number, since it uses less digits than its factorization.

39345657899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1507236.

The product of its digits is 220449600, while the sum is 68.

The spelling of 39345657899 in words is "thirty-nine billion, three hundred forty-five million, six hundred fifty-seven thousand, eight hundred ninety-nine".