6169945780 has 12 divisors (see below), whose sum is σ = 12956886180. Its totient is φ = 2467978304.

The previous prime is 6169945759. The next prime is 6169945811. The reversal of 6169945780 is 875499616.

It can be written as a sum of positive squares in 2 ways, for example, as 3286040976 + 2883904804 = 57324^2 + 53702^2 .

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, 154248625 + ... + 154248664.

It is an arithmetic number, because the mean of its divisors is an integer number (1079740515).

Almost surely, 2^6169945780 is an apocalyptic number.

It is an amenable number.

6169945780 is an abundant number, since it is smaller than the sum of its proper divisors (6786940400).

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

6169945780 is a wasteful number, since it uses less digits than its factorization.

6169945780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308497298 (or 308497296 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 55.

The square root of 6169945780 is about 78549.0024125068. The cubic root of 6169945780 is about 1834.1173361613.

The spelling of 6169945780 in words is "six billion, one hundred sixty-nine million, nine hundred forty-five thousand, seven hundred eighty".