65204828438887 has 4 divisors (see below), whose sum is σ = 65207203264336. Its totient is φ = 65202453613440.

The previous prime is 65204828438879. The next prime is 65204828438899. The reversal of 65204828438887 is 78883482840256.

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

It is a cyclic number.

It is not a de Polignac number, because 65204828438887 - 2³ = 65204828438879 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 (65204828433887) 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, 1187371539 + ... + 1187426452.

It is an arithmetic number, because the mean of its divisors is an integer number (16301800816084).

Almost surely, 2^{65204828438887} is an apocalyptic number.

65204828438887 is a deficient number, since it is larger than the sum of its proper divisors (2374825449).

65204828438887 is a wasteful number, since it uses less digits than its factorization.

65204828438887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2374825448.

The product of its (nonzero) digits is 1321205760, while the sum is 73.

The spelling of 65204828438887 in words is "sixty-five trillion, two hundred four billion, eight hundred twenty-eight million, four hundred thirty-eight thousand, eight hundred eighty-seven".