6778880485 has 16 divisors (see below), whose sum is σ = 8769907440. Its totient is φ = 5000509440.

The previous prime is 6778880483. The next prime is 6778880489. The reversal of 6778880485 is 5840888776.

It can be written as a sum of positive squares in 8 ways, for example, as 307160676 + 6471719809 = 17526^2 + 80447^2 .

It is not a de Polignac number, because 6778880485 - 2¹ = 6778880483 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6778880483) 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, 4255 + ... + 116515.

It is an arithmetic number, because the mean of its divisors is an integer number (548119215).

Almost surely, 2^6778880485 is an apocalyptic number.

6778880485 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6778880485 is a deficient number, since it is larger than the sum of its proper divisors (1991026955).

6778880485 is a wasteful number, since it uses less digits than its factorization.

6778880485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113208.

The product of its (nonzero) digits is 24084480, while the sum is 61.

The square root of 6778880485 is about 82333.9570590410. The cubic root of 6778880485 is about 1892.5730828999.

The spelling of 6778880485 in words is "six billion, seven hundred seventy-eight million, eight hundred eighty thousand, four hundred eighty-five".