7770343668 has 24 divisors (see below), whose sum is σ = 18239374272. Its totient is φ = 2574604224.

The previous prime is 7770343649. The next prime is 7770343709. The reversal of 7770343668 is 8663430777.

It is a self number, because there is not a number n which added to its sum of digits gives 7770343668.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1936705 + ... + 1940712.

It is an arithmetic number, because the mean of its divisors is an integer number (759973928).

Almost surely, 2^7770343668 is an apocalyptic number.

It is an amenable number.

7770343668 is an abundant number, since it is smaller than the sum of its proper divisors (10469030604).

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

7770343668 is a wasteful number, since it uses less digits than its factorization.

7770343668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3877591 (or 3877589 counting only the distinct ones).

The product of its (nonzero) digits is 3556224, while the sum is 51.

The square root of 7770343668 is about 88149.5528519572. The cubic root of 7770343668 is about 1980.6758625274.

The spelling of 7770343668 in words is "seven billion, seven hundred seventy million, three hundred forty-three thousand, six hundred sixty-eight".