6677777783898 has 48 divisors (see below), whose sum is σ = 15582033492480. Its totient is φ = 2054628065952.

The previous prime is 6677777783893. The next prime is 6677777783917. The reversal of 6677777783898 is 8983877777766.

It is a super-2 number, since 2×6677777783898² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6677777783893) 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 23 ways as a sum of consecutive naturals, for example, 6309783 + ... + 7291701.

It is an arithmetic number, because the mean of its divisors is an integer number (324625697760).

Almost surely, 2^{6677777783898} is an apocalyptic number.

6677777783898 is an abundant number, since it is smaller than the sum of its proper divisors (8904255708582).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6677777783898 is a wasteful number, since it uses less digits than its factorization.

6677777783898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1011003 (or 1011000 counting only the distinct ones).

The product of its digits is 58549671936, while the sum is 90.

The spelling of 6677777783898 in words is "six trillion, six hundred seventy-seven billion, seven hundred seventy-seven million, seven hundred eighty-three thousand, eight hundred ninety-eight".