6520969135 has 8 divisors (see below), whose sum is σ = 8007143760. Its totient is φ = 5095454784.

The previous prime is 6520969079. The next prime is 6520969139. The reversal of 6520969135 is 5319690256.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6520969135 - 2²³ = 6512580527 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6520969139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15164830 + ... + 15165259.

It is an arithmetic number, because the mean of its divisors is an integer number (1000892970).

Almost surely, 2^6520969135 is an apocalyptic number.

6520969135 is a deficient number, since it is larger than the sum of its proper divisors (1486174625).

6520969135 is a wasteful number, since it uses less digits than its factorization.

6520969135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30330137.

The product of its (nonzero) digits is 437400, while the sum is 46.

The square root of 6520969135 is about 80752.5178245236. The cubic root of 6520969135 is about 1868.2602839632.

The spelling of 6520969135 in words is "six billion, five hundred twenty million, nine hundred sixty-nine thousand, one hundred thirty-five".