7027780968 has 80 divisors (see below), whose sum is σ = 21198495780. Its totient is φ = 2162391552.

The previous prime is 7027780967. The next prime is 7027781017. The reversal of 7027780968 is 8690877207.

It can be written as a sum of positive squares in 2 ways, for example, as 6470915364 + 556865604 = 80442^2 + 23598^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (7027780961) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 408705 + ... + 425552.

Almost surely, 2^7027780968 is an apocalyptic number.

7027780968 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is an amenable number.

7027780968 is an abundant number, since it is smaller than the sum of its proper divisors (14170714812).

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

7027780968 is a wasteful number, since it uses less digits than its factorization.

7027780968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 834288 (or 834275 counting only the distinct ones).

The product of its (nonzero) digits is 2370816, while the sum is 54.

The square root of 7027780968 is about 83831.8612939019. The cubic root of 7027780968 is about 1915.4584652210.

The spelling of 7027780968 in words is "seven billion, twenty-seven million, seven hundred eighty thousand, nine hundred sixty-eight".