6535428997 has 8 divisors (see below), whose sum is σ = 6648626880. Its totient is φ = 6422312160.

The previous prime is 6535428989. The next prime is 6535429013. The reversal of 6535428997 is 7998245356.

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 6535428997 - 2³ = 6535428989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6535458997) 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, 155472 + ... + 192982.

It is an arithmetic number, because the mean of its divisors is an integer number (831078360).

Almost surely, 2^6535428997 is an apocalyptic number.

It is an amenable number.

6535428997 is a deficient number, since it is larger than the sum of its proper divisors (113197883).

6535428997 is a wasteful number, since it uses less digits than its factorization.

6535428997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40523.

The product of its digits is 16329600, while the sum is 58.

The square root of 6535428997 is about 80842.0002041018. Note that the first 3 decimals coincide. The cubic root of 6535428997 is about 1869.6401832795.

The spelling of 6535428997 in words is "six billion, five hundred thirty-five million, four hundred twenty-eight thousand, nine hundred ninety-seven".