3729639686399 has 16 divisors (see below), whose sum is σ = 4070712392064. Its totient is φ = 3388903240800.

The previous prime is 3729639686371. The next prime is 3729639686431. The reversal of 3729639686399 is 9936869369273.

It is not a de Polignac number, because 3729639686399 - 2³⁶ = 3660920209663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3729639686099) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 236000432 + ... + 236016234.

It is an arithmetic number, because the mean of its divisors is an integer number (254419524504).

Almost surely, 2^{3729639686399} is an apocalyptic number.

3729639686399 is a deficient number, since it is larger than the sum of its proper divisors (341072705665).

3729639686399 is a wasteful number, since it uses less digits than its factorization.

3729639686399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25078.

The product of its digits is 4285540224, while the sum is 80.

The spelling of 3729639686399 in words is "three trillion, seven hundred twenty-nine billion, six hundred thirty-nine million, six hundred eighty-six thousand, three hundred ninety-nine".