6742720601 has 4 divisors (see below), whose sum is σ = 6762729012. Its totient is φ = 6722712192.

The previous prime is 6742720571. The next prime is 6742720609. The reversal of 6742720601 is 1060272476.

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 2104974400 + 4637746201 = 45880^2 + 68101^2 .

It is a cyclic number.

It is not a de Polignac number, because 6742720601 - 2¹⁴ = 6742704217 is a prime.

It is a super-2 number, since 2×6742720601² = 90928562206299602402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6742720609) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10003700 + ... + 10004373.

It is an arithmetic number, because the mean of its divisors is an integer number (1690682253).

Almost surely, 2^6742720601 is an apocalyptic number.

It is an amenable number.

6742720601 is a deficient number, since it is larger than the sum of its proper divisors (20008411).

6742720601 is a wasteful number, since it uses less digits than its factorization.

6742720601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20008410.

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 6742720601 is about 82114.0706639246. The cubic root of 6742720601 is about 1889.2019624768.

The spelling of 6742720601 in words is "six billion, seven hundred forty-two million, seven hundred twenty thousand, six hundred one".