7748866464 has 48 divisors (see below), whose sum is σ = 20359761408. Its totient is φ = 2580544512.

The previous prime is 7748866459. The next prime is 7748866507. The reversal of 7748866464 is 4646688477.

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 7748866398 and 7748866407.

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, 67224 + ... + 141480.

It is an arithmetic number, because the mean of its divisors is an integer number (424161696).

Almost surely, 2^7748866464 is an apocalyptic number.

It is an amenable number.

7748866464 is an abundant number, since it is smaller than the sum of its proper divisors (12610894944).

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

7748866464 is a wasteful number, since it uses less digits than its factorization.

7748866464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75357 (or 75349 counting only the distinct ones).

The product of its digits is 43352064, while the sum is 60.

The square root of 7748866464 is about 88027.6460210086. The cubic root of 7748866464 is about 1978.8493181440.

The spelling of 7748866464 in words is "seven billion, seven hundred forty-eight million, eight hundred sixty-six thousand, four hundred sixty-four".