7788026940 has 36 divisors (see below), whose sum is σ = 21808389624. Its totient is φ = 2076624896.

The previous prime is 7788026933. The next prime is 7788026951. The reversal of 7788026940 is 496208877.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 677884 + ... + 689276.

Almost surely, 2^7788026940 is an apocalyptic number.

It is an amenable number.

7788026940 is an abundant number, since it is smaller than the sum of its proper divisors (14020362684).

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

7788026940 is an equidigital number, since it uses as much as digits as its factorization.

7788026940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22798 (or 11403 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 51.

The square root of 7788026940 is about 88249.7985266822. The cubic root of 7788026940 is about 1982.1772244550.

The spelling of 7788026940 in words is "seven billion, seven hundred eighty-eight million, twenty-six thousand, nine hundred forty".