6916946399 has 4 divisors (see below), whose sum is σ = 7545759720. Its totient is φ = 6288133080.

The previous prime is 6916946381. The next prime is 6916946401. The reversal of 6916946399 is 9936496196.

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 6916946399 - 2³² = 2621979103 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 (6916946329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 314406644 + ... + 314406665.

It is an arithmetic number, because the mean of its divisors is an integer number (1886439930).

Almost surely, 2^6916946399 is an apocalyptic number.

6916946399 is a deficient number, since it is larger than the sum of its proper divisors (628813321).

6916946399 is a wasteful number, since it uses less digits than its factorization.

6916946399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628813320.

The product of its digits is 17006112, while the sum is 62.

The square root of 6916946399 is about 83168.1814097194. The cubic root of 6916946399 is about 1905.3355474724.

The spelling of 6916946399 in words is "six billion, nine hundred sixteen million, nine hundred forty-six thousand, three hundred ninety-nine".