6899440361 has 8 divisors (see below), whose sum is σ = 7969407264. Its totient is φ = 5903264320.

The previous prime is 6899440351. The next prime is 6899440363. The reversal of 6899440361 is 1630449986.

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

It is a cyclic number.

It is not a de Polignac number, because 6899440361 - 2¹⁴ = 6899423977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6899440363) 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 7 ways as a sum of consecutive naturals, for example, 18447515 + ... + 18447888.

It is an arithmetic number, because the mean of its divisors is an integer number (996175908).

Almost surely, 2^6899440361 is an apocalyptic number.

It is an amenable number.

6899440361 is a deficient number, since it is larger than the sum of its proper divisors (1069966903).

6899440361 is a wasteful number, since it uses less digits than its factorization.

6899440361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36895431.

The product of its (nonzero) digits is 1119744, while the sum is 50.

The square root of 6899440361 is about 83062.8699299513. The cubic root of 6899440361 is about 1903.7267905928.

The spelling of 6899440361 in words is "six billion, eight hundred ninety-nine million, four hundred forty thousand, three hundred sixty-one".