396983342261 has 16 divisors (see below), whose sum is σ = 456564306240. Its totient is φ = 341375829120.

The previous prime is 396983342221. The next prime is 396983342267. The reversal of 396983342261 is 162243389693.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-396983342261 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 396983342197 and 396983342206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396983342267) 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, 1317920 + ... + 1590873.

It is an arithmetic number, because the mean of its divisors is an integer number (28535269140).

Almost surely, 2^396983342261 is an apocalyptic number.

It is an amenable number.

396983342261 is a deficient number, since it is larger than the sum of its proper divisors (59580963979).

396983342261 is a wasteful number, since it uses less digits than its factorization.

396983342261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2909476.

The product of its digits is 10077696, while the sum is 56.

The spelling of 396983342261 in words is "three hundred ninety-six billion, nine hundred eighty-three million, three hundred forty-two thousand, two hundred sixty-one".