65903484690853 has 4 divisors (see below), whose sum is σ = 68176018645740. Its totient is φ = 63630950735968.

The previous prime is 65903484690811. The next prime is 65903484690863. The reversal of 65903484690853 is 35809648430956.

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

It can be written as a sum of positive squares in 2 ways, for example, as 53473051125729 + 12430433565124 = 7312527^2 + 3525682^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65903484690853 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 (65903484690863) 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, 1136266977400 + ... + 1136266977457.

It is an arithmetic number, because the mean of its divisors is an integer number (17044004661435).

Almost surely, 2^{65903484690853} is an apocalyptic number.

It is an amenable number.

65903484690853 is a deficient number, since it is larger than the sum of its proper divisors (2272533954887).

65903484690853 is a wasteful number, since it uses less digits than its factorization.

65903484690853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2272533954886.

The product of its (nonzero) digits is 671846400, while the sum is 70.

The spelling of 65903484690853 in words is "sixty-five trillion, nine hundred three billion, four hundred eighty-four million, six hundred ninety thousand, eight hundred fifty-three".