64771741426319 has 4 divisors (see below), whose sum is σ = 64771758605400. Its totient is φ = 64771724247240.

The previous prime is 64771741426291. The next prime is 64771741426373. The reversal of 64771741426319 is 91362414717746.

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 64771741426319 - 2²⁴ = 64771724649103 is a prime.

It is a super-2 number, since 2×64771741426319² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64771741426519) 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, 207344 + ... + 11383605.

It is an arithmetic number, because the mean of its divisors is an integer number (16192939651350).

Almost surely, 2^{64771741426319} is an apocalyptic number.

64771741426319 is a deficient number, since it is larger than the sum of its proper divisors (17179081).

64771741426319 is a wasteful number, since it uses less digits than its factorization.

64771741426319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17179080.

The product of its digits is 42674688, while the sum is 62.

The spelling of 64771741426319 in words is "sixty-four trillion, seven hundred seventy-one billion, seven hundred forty-one million, four hundred twenty-six thousand, three hundred nineteen".