6801443551 has 16 divisors (see below), whose sum is σ = 8186863104. Its totient is φ = 5524209504.

The previous prime is 6801443543. The next prime is 6801443587. The reversal of 6801443551 is 1553441086.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 6801443551 - 2³ = 6801443543 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6801443551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6801443531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 180180 + ... + 214633.

It is an arithmetic number, because the mean of its divisors is an integer number (511678944).

Almost surely, 2^6801443551 is an apocalyptic number.

6801443551 is a deficient number, since it is larger than the sum of its proper divisors (1385419553).

6801443551 is a wasteful number, since it uses less digits than its factorization.

6801443551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394950.

The product of its (nonzero) digits is 57600, while the sum is 37.

The square root of 6801443551 is about 82470.8648614770. The cubic root of 6801443551 is about 1894.6705266522.

The spelling of 6801443551 in words is "six billion, eight hundred one million, four hundred forty-three thousand, five hundred fifty-one".