7740288664 has 32 divisors (see below), whose sum is σ = 14559239520. Its totient is φ = 3857849856.

The previous prime is 7740288653. The next prime is 7740288697. The reversal of 7740288664 is 4668820477.

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.

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 7 ways as a sum of consecutive naturals, for example, 4983312 + ... + 4984864.

It is an arithmetic number, because the mean of its divisors is an integer number (454976235).

Almost surely, 2^7740288664 is an apocalyptic number.

It is an amenable number.

7740288664 is a deficient number, since it is larger than the sum of its proper divisors (6818950856).

7740288664 is a wasteful number, since it uses less digits than its factorization.

7740288664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3139 (or 3135 counting only the distinct ones).

The product of its (nonzero) digits is 3612672, while the sum is 52.

The square root of 7740288664 is about 87978.9103365119. The cubic root of 7740288664 is about 1978.1188697641.

The spelling of 7740288664 in words is "seven billion, seven hundred forty million, two hundred eighty-eight thousand, six hundred sixty-four".