3680377780 has 24 divisors (see below), whose sum is σ = 7773475752. Its totient is φ = 1463640192.

The previous prime is 3680377763. The next prime is 3680377793. The reversal of 3680377780 is 877730863.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1230325776 + 2450052004 = 35076^2 + 49498^2 .

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 7 ways as a sum of consecutive naturals, for example, 528387 + ... + 535306.

It is an arithmetic number, because the mean of its divisors is an integer number (323894823).

Almost surely, 2^3680377780 is an apocalyptic number.

It is an amenable number.

3680377780 is an abundant number, since it is smaller than the sum of its proper divisors (4093097972).

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

3680377780 is a wasteful number, since it uses less digits than its factorization.

3680377780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1063875 (or 1063873 counting only the distinct ones).

The product of its (nonzero) digits is 1185408, while the sum is 49.

The square root of 3680377780 is about 60666.1172319442. The cubic root of 3680377780 is about 1543.9413546993.

The spelling of 3680377780 in words is "three billion, six hundred eighty million, three hundred seventy-seven thousand, seven hundred eighty".