7764538652 has 24 divisors (see below), whose sum is σ = 15028663776. Its totient is φ = 3486777408.

The previous prime is 7764538517. The next prime is 7764538693. The reversal of 7764538652 is 2568354677.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 7764538594 and 7764538603.

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, 2015888 + ... + 2019735.

It is an arithmetic number, because the mean of its divisors is an integer number (626194324).

Almost surely, 2^7764538652 is an apocalyptic number.

It is an amenable number.

7764538652 is a deficient number, since it is larger than the sum of its proper divisors (7264125124).

7764538652 is a wasteful number, since it uses less digits than its factorization.

7764538652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4035677 (or 4035675 counting only the distinct ones).

The product of its digits is 8467200, while the sum is 53.

The square root of 7764538652 is about 88116.6196128744. The cubic root of 7764538652 is about 1980.1825029885.

The spelling of 7764538652 in words is "seven billion, seven hundred sixty-four million, five hundred thirty-eight thousand, six hundred fifty-two".