7774616890 has 12 divisors (see below), whose sum is σ = 13994812314. Its totient is φ = 3109735224.

The previous prime is 7774616881. The next prime is 7774616909. The reversal of 7774616890 is 986164777.

It can be written as a sum of positive squares in only one way, i.e., 6997155201 + 777461689 = 83649^2 + 27883^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 264889 + ... + 292771.

Almost surely, 2^7774616890 is an apocalyptic number.

7774616890 is a deficient number, since it is larger than the sum of its proper divisors (6220195424).

7774616890 is an frugal number, since it uses more digits than its factorization.

7774616890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55773 (or 27890 counting only the distinct ones).

The product of its (nonzero) digits is 3556224, while the sum is 55.

The square root of 7774616890 is about 88173.7879984749. The cubic root of 7774616890 is about 1981.0388802165.

The spelling of 7774616890 in words is "seven billion, seven hundred seventy-four million, six hundred sixteen thousand, eight hundred ninety".