6726738346201 has 4 divisors (see below), whose sum is σ = 7122428837172. Its totient is φ = 6331047855232.

The previous prime is 6726738346193. The next prime is 6726738346313. The reversal of 6726738346201 is 1026438376276.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2828972622025 + 3897765724176 = 1681955^2 + 1974276^2 .

It is a cyclic number.

It is not a de Polignac number, because 6726738346201 - 2³ = 6726738346193 is a prime.

It is a super-2 number, since 2×6726738346201² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6726738346901) 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 3 ways as a sum of consecutive naturals, for example, 197845245460 + ... + 197845245493.

It is an arithmetic number, because the mean of its divisors is an integer number (1780607209293).

Almost surely, 2^{6726738346201} is an apocalyptic number.

It is an amenable number.

6726738346201 is a deficient number, since it is larger than the sum of its proper divisors (395690490971).

6726738346201 is a wasteful number, since it uses less digits than its factorization.

6726738346201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395690490970.

The product of its (nonzero) digits is 12192768, while the sum is 55.

The spelling of 6726738346201 in words is "six trillion, seven hundred twenty-six billion, seven hundred thirty-eight million, three hundred forty-six thousand, two hundred one".