6764321551 has 16 divisors (see below), whose sum is σ = 7846594560. Its totient is φ = 5779841760.

The previous prime is 6764321549. The next prime is 6764321567. The reversal of 6764321551 is 1551234676.

It is a cyclic number.

It is not a de Polignac number, because 6764321551 - 2¹ = 6764321549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6764321591) 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 15 ways as a sum of consecutive naturals, for example, 355621 + ... + 374158.

It is an arithmetic number, because the mean of its divisors is an integer number (490412160).

Almost surely, 2^6764321551 is an apocalyptic number.

6764321551 is a deficient number, since it is larger than the sum of its proper divisors (1082273009).

6764321551 is a wasteful number, since it uses less digits than its factorization.

6764321551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 729846.

The product of its digits is 151200, while the sum is 40.

The square root of 6764321551 is about 82245.4956274202. The cubic root of 6764321551 is about 1891.2172250046.

The spelling of 6764321551 in words is "six billion, seven hundred sixty-four million, three hundred twenty-one thousand, five hundred fifty-one".