65839628401 has 4 divisors (see below), whose sum is σ = 65895854704. Its totient is φ = 65783402100.

The previous prime is 65839628383. The next prime is 65839628461. The reversal of 65839628401 is 10482693856.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 65839628401 - 2²⁹ = 65302757489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65839628461) 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, 28111395 + ... + 28113736.

It is an arithmetic number, because the mean of its divisors is an integer number (16473963676).

Almost surely, 2^65839628401 is an apocalyptic number.

It is an amenable number.

65839628401 is a deficient number, since it is larger than the sum of its proper divisors (56226303).

65839628401 is a wasteful number, since it uses less digits than its factorization.

65839628401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56226302.

The product of its (nonzero) digits is 2488320, while the sum is 52.

The spelling of 65839628401 in words is "sixty-five billion, eight hundred thirty-nine million, six hundred twenty-eight thousand, four hundred one".