6635687052 has 12 divisors (see below), whose sum is σ = 15483269816. Its totient is φ = 2211895680.

The previous prime is 6635687033. The next prime is 6635687089. The reversal of 6635687052 is 2507865366.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 6635686992 and 6635687010.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 276486949 + ... + 276486972.

Almost surely, 2^6635687052 is an apocalyptic number.

It is an amenable number.

6635687052 is an abundant number, since it is smaller than the sum of its proper divisors (8847582764).

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

6635687052 is a wasteful number, since it uses less digits than its factorization.

6635687052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552973928 (or 552973926 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 48.

The square root of 6635687052 is about 81459.7265647264. The cubic root of 6635687052 is about 1879.1522369784.

The spelling of 6635687052 in words is "six billion, six hundred thirty-five million, six hundred eighty-seven thousand, fifty-two".