9776665740 has 48 divisors (see below), whose sum is σ = 27590234112. Its totient is φ = 2586580416.

The previous prime is 9776665739. The next prime is 9776665751. The reversal of 9776665740 is 475666779.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 633894 + ... + 649133.

It is an arithmetic number, because the mean of its divisors is an integer number (574796544).

Almost surely, 2^9776665740 is an apocalyptic number.

It is an amenable number.

9776665740 is an abundant number, since it is smaller than the sum of its proper divisors (17813568372).

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

9776665740 is a wasteful number, since it uses less digits than its factorization.

9776665740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1283166 (or 1283164 counting only the distinct ones).

The product of its (nonzero) digits is 13335840, while the sum is 57.

The square root of 9776665740 is about 98877.0233168455. The cubic root of 9776665740 is about 2138.2751510295.

The spelling of 9776665740 in words is "nine billion, seven hundred seventy-six million, six hundred sixty-five thousand, seven hundred forty".