3206964506857 has 8 divisors (see below), whose sum is σ = 3260149227720. Its totient is φ = 3153799512960.

The previous prime is 3206964506741. The next prime is 3206964506897. The reversal of 3206964506857 is 7586054696023.

It can be written as a sum of positive squares in 4 ways, for example, as 554304074256 + 2652660432601 = 744516^2 + 1628699^2 .

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

It is not a de Polignac number, because 3206964506857 - 2¹⁹ = 3206963982569 is a prime.

It is a super-2 number, since 2×3206964506857² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (61).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3206964506795 and 3206964506804.

It is not an unprimeable number, because it can be changed into a prime (3206964506897) 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, 4603732 + ... + 5254357.

It is an arithmetic number, because the mean of its divisors is an integer number (407518653465).

Almost surely, 2^{3206964506857} is an apocalyptic number.

It is an amenable number.

3206964506857 is a deficient number, since it is larger than the sum of its proper divisors (53184720863).

3206964506857 is an equidigital number, since it uses as much as digits as its factorization.

3206964506857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9863483.

The product of its (nonzero) digits is 65318400, while the sum is 61.

The spelling of 3206964506857 in words is "three trillion, two hundred six billion, nine hundred sixty-four million, five hundred six thousand, eight hundred fifty-seven".