6205102780 has 12 divisors (see below), whose sum is σ = 13030715880. Its totient is φ = 2482041104.

The previous prime is 6205102763. The next prime is 6205102793. The reversal of 6205102780 is 872015026.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 155127550 + ... + 155127589.

It is an arithmetic number, because the mean of its divisors is an integer number (1085892990).

Almost surely, 2^6205102780 is an apocalyptic number.

It is an amenable number.

6205102780 is an abundant number, since it is smaller than the sum of its proper divisors (6825613100).

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

6205102780 is a wasteful number, since it uses less digits than its factorization.

6205102780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310255148 (or 310255146 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 6205102780 is about 78772.4747611753. The cubic root of 6205102780 is about 1837.5944047630.

The spelling of 6205102780 in words is "six billion, two hundred five million, one hundred two thousand, seven hundred eighty".