7786320020 has 48 divisors (see below), whose sum is σ = 16555244160. Its totient is φ = 3075843456.

The previous prime is 7786319993. The next prime is 7786320037. The reversal of 7786320020 is 200236877.

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 15 ways as a sum of consecutive naturals, for example, 775754 + ... + 785726.

It is an arithmetic number, because the mean of its divisors is an integer number (344900920).

Almost surely, 2^7786320020 is an apocalyptic number.

It is an amenable number.

7786320020 is an abundant number, since it is smaller than the sum of its proper divisors (8768924140).

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

7786320020 is a wasteful number, since it uses less digits than its factorization.

7786320020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10464 (or 10462 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 7786320020 is about 88240.1270397998. The cubic root of 7786320020 is about 1982.0324010747.

Adding to 7786320020 its reverse (200236877), we get a palindrome (7986556897).

The spelling of 7786320020 in words is "seven billion, seven hundred eighty-six million, three hundred twenty thousand, twenty".