4069387778999 has 16 divisors (see below), whose sum is σ = 4211070716160. Its totient is φ = 3929848802880.

The previous prime is 4069387778971. The next prime is 4069387779013. The reversal of 4069387778999 is 9998777839604.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4069387778999 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4069387778999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4069387778399) 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, 114512864 + ... + 114548394.

It is an arithmetic number, because the mean of its divisors is an integer number (263191919760).

Almost surely, 2^{4069387778999} is an apocalyptic number.

4069387778999 is a deficient number, since it is larger than the sum of its proper divisors (141682937161).

4069387778999 is a wasteful number, since it uses less digits than its factorization.

4069387778999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65590.

The product of its (nonzero) digits is 10369949184, while the sum is 86.

The spelling of 4069387778999 in words is "four trillion, sixty-nine billion, three hundred eighty-seven million, seven hundred seventy-eight thousand, nine hundred ninety-nine".