6772513321 has 4 divisors (see below), whose sum is σ = 7740015232. Its totient is φ = 5805011412.

The previous prime is 6772513303. The next prime is 6772513327. The reversal of 6772513321 is 1233152776.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6772513321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6772513327) 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, 483750945 + ... + 483750958.

It is an arithmetic number, because the mean of its divisors is an integer number (1935003808).

Almost surely, 2^6772513321 is an apocalyptic number.

It is an amenable number.

6772513321 is a deficient number, since it is larger than the sum of its proper divisors (967501911).

6772513321 is an equidigital number, since it uses as much as digits as its factorization.

6772513321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 967501910.

The product of its digits is 52920, while the sum is 37.

The square root of 6772513321 is about 82295.2812802775. The cubic root of 6772513321 is about 1891.9803548424.

The spelling of 6772513321 in words is "six billion, seven hundred seventy-two million, five hundred thirteen thousand, three hundred twenty-one".