7790379966 has 24 divisors (see below), whose sum is σ = 16897017384. Its totient is φ = 2594045520.

The previous prime is 7790379937. The next prime is 7790379973. The reversal of 7790379966 is 6699730977.

It is a super-2 number, since 2×7790379966² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 211465 + ... + 245556.

It is an arithmetic number, because the mean of its divisors is an integer number (704042391).

Almost surely, 2^7790379966 is an apocalyptic number.

7790379966 is an abundant number, since it is smaller than the sum of its proper divisors (9106637418).

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

7790379966 is a wasteful number, since it uses less digits than its factorization.

7790379966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457976 (or 457973 counting only the distinct ones).

The product of its (nonzero) digits is 27005076, while the sum is 63.

The square root of 7790379966 is about 88263.1291423548. The cubic root of 7790379966 is about 1982.3768319179.

The spelling of 7790379966 in words is "seven billion, seven hundred ninety million, three hundred seventy-nine thousand, nine hundred sixty-six".