6416694787 has 8 divisors (see below), whose sum is σ = 6555750912. Its totient is φ = 6277744200.

The previous prime is 6416694769. The next prime is 6416694811. The reversal of 6416694787 is 7874966146.

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 6416694787 - 2¹¹ = 6416692739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6416694707) 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, 103362 + ... + 153352.

It is an arithmetic number, because the mean of its divisors is an integer number (819468864).

Almost surely, 2^6416694787 is an apocalyptic number.

6416694787 is a deficient number, since it is larger than the sum of its proper divisors (139056125).

6416694787 is a wasteful number, since it uses less digits than its factorization.

6416694787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52769.

The product of its digits is 12192768, while the sum is 58.

The square root of 6416694787 is about 80104.2744614793. The cubic root of 6416694787 is about 1858.2485137573.

The spelling of 6416694787 in words is "six billion, four hundred sixteen million, six hundred ninety-four thousand, seven hundred eighty-seven".