6694002543 has 8 divisors (see below), whose sum is σ = 8971582768. Its totient is φ = 4439545344.

The previous prime is 6694002541. The next prime is 6694002551. The reversal of 6694002543 is 3452004966.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6694002543 - 2¹ = 6694002541 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 (6694002541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5780080 + ... + 5781237.

It is an arithmetic number, because the mean of its divisors is an integer number (1121447846).

Almost surely, 2^6694002543 is an apocalyptic number.

6694002543 is a deficient number, since it is larger than the sum of its proper divisors (2277580225).

6694002543 is a wasteful number, since it uses less digits than its factorization.

6694002543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11561513.

The product of its (nonzero) digits is 155520, while the sum is 39.

The square root of 6694002543 is about 81816.8842171345. The cubic root of 6694002543 is about 1884.6409542541.

The spelling of 6694002543 in words is "six billion, six hundred ninety-four million, two thousand, five hundred forty-three".