3990908236078 has 8 divisors (see below), whose sum is σ = 6192788642280. Its totient is φ = 1926645355320.

The previous prime is 3990908236033. The next prime is 3990908236079. The reversal of 3990908236078 is 8706328090993.

It is a happy number.

3990908236078 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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (3990908236079) 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, 34404381288 + ... + 34404381403.

It is an arithmetic number, because the mean of its divisors is an integer number (774098580285).

Almost surely, 2^{3990908236078} is an apocalyptic number.

3990908236078 is a deficient number, since it is larger than the sum of its proper divisors (2201880406202).

3990908236078 is a wasteful number, since it uses less digits than its factorization.

3990908236078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68808762722.

The product of its (nonzero) digits is 35271936, while the sum is 64.

The spelling of 3990908236078 in words is "three trillion, nine hundred ninety billion, nine hundred eight million, two hundred thirty-six thousand, seventy-eight".