64315534943 has 8 divisors (see below), whose sum is σ = 72581795280. Its totient is φ = 56452506880.

The previous prime is 64315534931. The next prime is 64315534963. The reversal of 64315534943 is 34943551346.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 64315534943 - 2¹² = 64315530847 is a prime.

It is a super-3 number, since 3×64315534943³ (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 (64315534963) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100807730 + ... + 100808367.

It is an arithmetic number, because the mean of its divisors is an integer number (9072724410).

Almost surely, 2^64315534943 is an apocalyptic number.

64315534943 is a deficient number, since it is larger than the sum of its proper divisors (8266260337).

64315534943 is a wasteful number, since it uses less digits than its factorization.

64315534943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201616137.

The product of its digits is 2332800, while the sum is 47.

The spelling of 64315534943 in words is "sixty-four billion, three hundred fifteen million, five hundred thirty-four thousand, nine hundred forty-three".