6780889499 has 4 divisors (see below), whose sum is σ = 7137778440. Its totient is φ = 6424000560.

The previous prime is 6780889457. The next prime is 6780889513. The reversal of 6780889499 is 9949880876.

It is a happy number.

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 6780889499 - 2¹² = 6780885403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6780880499) 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, 178444442 + ... + 178444479.

It is an arithmetic number, because the mean of its divisors is an integer number (1784444610).

Almost surely, 2^6780889499 is an apocalyptic number.

6780889499 is a deficient number, since it is larger than the sum of its proper divisors (356888941).

6780889499 is a wasteful number, since it uses less digits than its factorization.

6780889499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356888940.

The product of its (nonzero) digits is 62705664, while the sum is 68.

The square root of 6780889499 is about 82346.1565526892. The cubic root of 6780889499 is about 1892.7600277441.

The spelling of 6780889499 in words is "six billion, seven hundred eighty million, eight hundred eighty-nine thousand, four hundred ninety-nine".