4085783654399 has 4 divisors (see below), whose sum is σ = 4226672745960. Its totient is φ = 3944894562840.

The previous prime is 4085783654357. The next prime is 4085783654423. The reversal of 4085783654399 is 9934563875804.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4085783654399 - 2¹⁶ = 4085783588863 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 (4085783656399) 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, 70444545737 + ... + 70444545794.

It is an arithmetic number, because the mean of its divisors is an integer number (1056668186490).

Almost surely, 2^{4085783654399} is an apocalyptic number.

4085783654399 is a deficient number, since it is larger than the sum of its proper divisors (140889091561).

4085783654399 is a wasteful number, since it uses less digits than its factorization.

4085783654399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140889091560.

The product of its (nonzero) digits is 783820800, while the sum is 71.

The spelling of 4085783654399 in words is "four trillion, eighty-five billion, seven hundred eighty-three million, six hundred fifty-four thousand, three hundred ninety-nine".