396693953261 has 8 divisors (see below), whose sum is σ = 418536961920. Its totient is φ = 374947382592.

The previous prime is 396693953207. The next prime is 396693953267. The reversal of 396693953261 is 162359396693.

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

It is not a de Polignac number, because 396693953261 - 2⁶ = 396693953197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 396693953194 and 396693953203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396693953267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24101045 + ... + 24117498.

It is an arithmetic number, because the mean of its divisors is an integer number (52317120240).

Almost surely, 2^396693953261 is an apocalyptic number.

It is an amenable number.

396693953261 is a deficient number, since it is larger than the sum of its proper divisors (21843008659).

396693953261 is a wasteful number, since it uses less digits than its factorization.

396693953261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48218995.

The product of its digits is 42515280, while the sum is 62.

The spelling of 396693953261 in words is "three hundred ninety-six billion, six hundred ninety-three million, nine hundred fifty-three thousand, two hundred sixty-one".