6764040361 has 4 divisors (see below), whose sum is σ = 7284351172. Its totient is φ = 6243729552.

The previous prime is 6764040341. The next prime is 6764040383. The reversal of 6764040361 is 1630404676.

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 2334339225 + 4429701136 = 48315^2 + 66556^2 .

It is a cyclic number.

It is not a de Polignac number, because 6764040361 - 2⁷ = 6764040233 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6764040361.

It is not an unprimeable number, because it can be changed into a prime (6764040341) 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, 260155386 + ... + 260155411.

It is an arithmetic number, because the mean of its divisors is an integer number (1821087793).

Almost surely, 2^6764040361 is an apocalyptic number.

It is an amenable number.

6764040361 is a deficient number, since it is larger than the sum of its proper divisors (520310811).

6764040361 is a wasteful number, since it uses less digits than its factorization.

6764040361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520310810.

The product of its (nonzero) digits is 72576, while the sum is 37.

The square root of 6764040361 is about 82243.7861543351. The cubic root of 6764040361 is about 1891.1910189401.

The spelling of 6764040361 in words is "six billion, seven hundred sixty-four million, forty thousand, three hundred sixty-one".