6629525386 has 12 divisors (see below), whose sum is σ = 10930498866. Its totient is φ = 3013420520.

The previous prime is 6629525339. The next prime is 6629525389. The reversal of 6629525386 is 6835259266.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 6005475025 + 624050361 = 77495^2 + 24981^2 .

It is not an unprimeable number, because it can be changed into a prime (6629525389) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13697125 + ... + 13697608.

Almost surely, 2^6629525386 is an apocalyptic number.

6629525386 is a deficient number, since it is larger than the sum of its proper divisors (4300973480).

6629525386 is a wasteful number, since it uses less digits than its factorization.

6629525386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27394757 (or 27394746 counting only the distinct ones).

The product of its digits is 4665600, while the sum is 52.

The square root of 6629525386 is about 81421.8974600813. The cubic root of 6629525386 is about 1878.5704185941.

The spelling of 6629525386 in words is "six billion, six hundred twenty-nine million, five hundred twenty-five thousand, three hundred eighty-six".