7714769640 has 32 divisors (see below), whose sum is σ = 23144309280. Its totient is φ = 2057271872.

The previous prime is 7714769639. The next prime is 7714769651. The reversal of 7714769640 is 469674177.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 32144754 + ... + 32144993.

It is an arithmetic number, because the mean of its divisors is an integer number (723259665).

Almost surely, 2^7714769640 is an apocalyptic number.

It is an amenable number.

7714769640 is an abundant number, since it is smaller than the sum of its proper divisors (15429539640).

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

7714769640 is a wasteful number, since it uses less digits than its factorization.

7714769640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64289761 (or 64289757 counting only the distinct ones).

The product of its (nonzero) digits is 1778112, while the sum is 51.

The square root of 7714769640 is about 87833.7613904813. The cubic root of 7714769640 is about 1975.9425839885.

The spelling of 7714769640 in words is "seven billion, seven hundred fourteen million, seven hundred sixty-nine thousand, six hundred forty".