6699943852031 has 4 divisors (see below), whose sum is σ = 6699972568464. Its totient is φ = 6699915135600.

The previous prime is 6699943852027. The next prime is 6699943852061. The reversal of 6699943852031 is 1302583499966.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6699943852031 - 2² = 6699943852027 is a prime.

It is a super-2 number, since 2×6699943852031² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6699943852061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14005355 + ... + 14475836.

It is an arithmetic number, because the mean of its divisors is an integer number (1674993142116).

Almost surely, 2^{6699943852031} is an apocalyptic number.

6699943852031 is a deficient number, since it is larger than the sum of its proper divisors (28716433).

6699943852031 is a wasteful number, since it uses less digits than its factorization.

6699943852031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28716432.

The product of its (nonzero) digits is 75582720, while the sum is 65.

The spelling of 6699943852031 in words is "six trillion, six hundred ninety-nine billion, nine hundred forty-three million, eight hundred fifty-two thousand, thirty-one".