39899759430739 has 8 divisors (see below), whose sum is σ = 42969306667952. Its totient is φ = 36830260046880.

The previous prime is 39899759430719. The next prime is 39899759430743. The reversal of 39899759430739 is 93703495799893.

It is a happy number.

39899759430739 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 39899759430739 - 2²¹ = 39899757333587 is a prime.

It is a super-2 number, since 2×39899759430739² (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 (39899759430719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10222224 + ... + 13575469.

It is an arithmetic number, because the mean of its divisors is an integer number (5371163333494).

Almost surely, 2^{39899759430739} is an apocalyptic number.

39899759430739 is a deficient number, since it is larger than the sum of its proper divisors (3069547237213).

39899759430739 is a wasteful number, since it uses less digits than its factorization.

39899759430739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23926677.

The product of its (nonzero) digits is 12499492320, while the sum is 85.

The spelling of 39899759430739 in words is "thirty-nine trillion, eight hundred ninety-nine billion, seven hundred fifty-nine million, four hundred thirty thousand, seven hundred thirty-nine".