3950716786819 has 16 divisors (see below), whose sum is σ = 4563457737696. Its totient is φ = 3380245811200.

The previous prime is 3950716786799. The next prime is 3950716786837. The reversal of 3950716786819 is 9186876170593.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 3950716786819 - 2¹⁹ = 3950716262531 is a prime.

It is a super-2 number, since 2×3950716786819² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3950716780819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25259979 + ... + 25415899.

It is an arithmetic number, because the mean of its divisors is an integer number (285216108606).

Almost surely, 2^{3950716786819} is an apocalyptic number.

3950716786819 is a deficient number, since it is larger than the sum of its proper divisors (612740950877).

3950716786819 is a wasteful number, since it uses less digits than its factorization.

3950716786819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291446.

The product of its (nonzero) digits is 137168640, while the sum is 70.

The spelling of 3950716786819 in words is "three trillion, nine hundred fifty billion, seven hundred sixteen million, seven hundred eighty-six thousand, eight hundred nineteen".