65423812471 has 4 divisors (see below), whose sum is σ = 66400287352. Its totient is φ = 64447337592.

The previous prime is 65423812459. The next prime is 65423812477. The reversal of 65423812471 is 17421832456.

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 65423812471 - 2¹¹ = 65423810423 is a prime.

It is a super-3 number, since 3×65423812471³ (a number of 33 digits) contains 333 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 (65423812477) 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, 488237340 + ... + 488237473.

It is an arithmetic number, because the mean of its divisors is an integer number (16600071838).

Almost surely, 2^65423812471 is an apocalyptic number.

65423812471 is a deficient number, since it is larger than the sum of its proper divisors (976474881).

65423812471 is an equidigital number, since it uses as much as digits as its factorization.

65423812471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 976474880.

The product of its digits is 322560, while the sum is 43.

The spelling of 65423812471 in words is "sixty-five billion, four hundred twenty-three million, eight hundred twelve thousand, four hundred seventy-one".