6920645528 has 16 divisors (see below), whose sum is σ = 12984239760. Its totient is φ = 3458181600.

The previous prime is 6920645509. The next prime is 6920645533. The reversal of 6920645528 is 8255460296.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 253868 + ... + 279803.

It is an arithmetic number, because the mean of its divisors is an integer number (811514985).

Almost surely, 2^6920645528 is an apocalyptic number.

It is an amenable number.

6920645528 is a deficient number, since it is larger than the sum of its proper divisors (6063594232).

6920645528 is a wasteful number, since it uses less digits than its factorization.

6920645528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535298 (or 535294 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 47.

The square root of 6920645528 is about 83190.4172846849. The cubic root of 6920645528 is about 1905.6751398072.

The spelling of 6920645528 in words is "six billion, nine hundred twenty million, six hundred forty-five thousand, five hundred twenty-eight".