7664782468 has 18 divisors (see below), whose sum is σ = 15603307566. Its totient is φ = 3284906688.

The previous prime is 7664782427. The next prime is 7664782483. The reversal of 7664782468 is 8642874667.

It can be written as a sum of positive squares in only one way, i.e., 6760457284 + 904325184 = 82222^2 + 30072^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19552821 + ... + 19553212.

Almost surely, 2^7664782468 is an apocalyptic number.

It is an amenable number.

7664782468 is an abundant number, since it is smaller than the sum of its proper divisors (7938525098).

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

7664782468 is a wasteful number, since it uses less digits than its factorization.

7664782468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39106051 (or 39106042 counting only the distinct ones).

The product of its digits is 21676032, while the sum is 58.

The square root of 7664782468 is about 87548.7433833290. The cubic root of 7664782468 is about 1971.6656845966.

The spelling of 7664782468 in words is "seven billion, six hundred sixty-four million, seven hundred eighty-two thousand, four hundred sixty-eight".