64331274523 has 8 divisors (see below), whose sum is σ = 68157830160. Its totient is φ = 60509425920.

The previous prime is 64331274517. The next prime is 64331274533. The reversal of 64331274523 is 32547213346.

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

It is a cyclic number.

It is not a de Polignac number, because 64331274523 - 2⁹ = 64331274011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64331274533) 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, 1148593 + ... + 1203298.

It is an arithmetic number, because the mean of its divisors is an integer number (8519728770).

Almost surely, 2^64331274523 is an apocalyptic number.

64331274523 is a deficient number, since it is larger than the sum of its proper divisors (3826555637).

64331274523 is a wasteful number, since it uses less digits than its factorization.

64331274523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2353517.

The product of its digits is 362880, while the sum is 40.

Adding to 64331274523 its reverse (32547213346), we get a palindrome (96878487869).

The spelling of 64331274523 in words is "sixty-four billion, three hundred thirty-one million, two hundred seventy-four thousand, five hundred twenty-three".