9420783926399 has 4 divisors (see below), whose sum is σ = 9526635431280. Its totient is φ = 9314932421520.

The previous prime is 9420783926387. The next prime is 9420783926423. The reversal of 9420783926399 is 9936293870249.

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 9420783926399 - 2⁸ = 9420783926143 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 (9420783926899) 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, 52925752307 + ... + 52925752484.

It is an arithmetic number, because the mean of its divisors is an integer number (2381658857820).

Almost surely, 2^{9420783926399} is an apocalyptic number.

9420783926399 is a deficient number, since it is larger than the sum of its proper divisors (105851504881).

9420783926399 is a wasteful number, since it uses less digits than its factorization.

9420783926399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105851504880.

The product of its (nonzero) digits is 317447424, while the sum is 71.

The spelling of 9420783926399 in words is "nine trillion, four hundred twenty billion, seven hundred eighty-three million, nine hundred twenty-six thousand, three hundred ninety-nine".