65126373913 has 4 divisors (see below), whose sum is σ = 65129908788. Its totient is φ = 65122839040.

The previous prime is 65126373887. The next prime is 65126373919. The reversal of 65126373913 is 31937362156.

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 40954831129 + 24171542784 = 202373^2 + 155472^2 .

It is a cyclic number.

It is not a de Polignac number, because 65126373913 - 2⁹ = 65126373401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65126373919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1739656 + ... + 1776697.

It is an arithmetic number, because the mean of its divisors is an integer number (16282477197).

Almost surely, 2^65126373913 is an apocalyptic number.

It is an amenable number.

65126373913 is a deficient number, since it is larger than the sum of its proper divisors (3534875).

65126373913 is a wasteful number, since it uses less digits than its factorization.

65126373913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3534874.

The product of its digits is 612360, while the sum is 46.

The spelling of 65126373913 in words is "sixty-five billion, one hundred twenty-six million, three hundred seventy-three thousand, nine hundred thirteen".