7780500560 has 40 divisors (see below), whose sum is σ = 20673902976. Its totient is φ = 2667600000.

The previous prime is 7780500557. The next prime is 7780500577. The reversal of 7780500560 is 650050877.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6946316 + ... + 6947435.

Almost surely, 2^7780500560 is an apocalyptic number.

7780500560 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

7780500560 is an abundant number, since it is smaller than the sum of its proper divisors (12893402416).

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

7780500560 is a wasteful number, since it uses less digits than its factorization.

7780500560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13893771 (or 13893765 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 38.

The square root of 7780500560 is about 88207.1457422810. The cubic root of 7780500560 is about 1981.5384906858.

The spelling of 7780500560 in words is "seven billion, seven hundred eighty million, five hundred thousand, five hundred sixty".