392435666849 has 8 divisors (see below), whose sum is σ = 393900235272. Its totient is φ = 390972441600.

The previous prime is 392435666827. The next prime is 392435666911. The reversal of 392435666849 is 948666534293.

It can be written as a sum of positive squares in 4 ways, for example, as 38580816400 + 353854850449 = 196420^2 + 594857^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 392435666849 - 2³² = 388140699553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (392435665849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 251549 + ... + 920949.

It is an arithmetic number, because the mean of its divisors is an integer number (49237529409).

Almost surely, 2^392435666849 is an apocalyptic number.

It is an amenable number.

392435666849 is a deficient number, since it is larger than the sum of its proper divisors (1464568423).

392435666849 is a wasteful number, since it uses less digits than its factorization.

392435666849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671587.

The product of its digits is 201553920, while the sum is 65.

The spelling of 392435666849 in words is "three hundred ninety-two billion, four hundred thirty-five million, six hundred sixty-six thousand, eight hundred forty-nine".