65298428099 has 4 divisors (see below), whose sum is σ = 66124990560. Its totient is φ = 64471865640.

The previous prime is 65298428033. The next prime is 65298428123. The reversal of 65298428099 is 99082489256.

65298428099 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65298428099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65298428009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 413281112 + ... + 413281269.

It is an arithmetic number, because the mean of its divisors is an integer number (16531247640).

Almost surely, 2^65298428099 is an apocalyptic number.

65298428099 is a deficient number, since it is larger than the sum of its proper divisors (826562461).

65298428099 is an equidigital number, since it uses as much as digits as its factorization.

65298428099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 826562460.

The product of its (nonzero) digits is 22394880, while the sum is 62.

The spelling of 65298428099 in words is "sixty-five billion, two hundred ninety-eight million, four hundred twenty-eight thousand, ninety-nine".