6793780990 has 32 divisors (see below), whose sum is σ = 12657617280. Its totient is φ = 2622326784.

The previous prime is 6793780949. The next prime is 6793780993. The reversal of 6793780990 is 990873976.

It is a Harshad number since it is a multiple of its sum of digits (58).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6793780993) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 607227 + ... + 618313.

It is an arithmetic number, because the mean of its divisors is an integer number (395550540).

Almost surely, 2^6793780990 is an apocalyptic number.

6793780990 is a deficient number, since it is larger than the sum of its proper divisors (5863836290).

6793780990 is a wasteful number, since it uses less digits than its factorization.

6793780990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13236.

The product of its (nonzero) digits is 5143824, while the sum is 58.

The square root of 6793780990 is about 82424.3955998465. The cubic root of 6793780990 is about 1893.9587422673.

The spelling of 6793780990 in words is "six billion, seven hundred ninety-three million, seven hundred eighty thousand, nine hundred ninety".