64514051123 has 4 divisors (see below), whose sum is σ = 64724194920. Its totient is φ = 64303907328.

The previous prime is 64514051117. The next prime is 64514051149. The reversal of 64514051123 is 32115041546.

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 64514051123 - 2¹² = 64514047027 is a prime.

It is a super-2 number, since 2×64514051123² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 64514051123.

It is not an unprimeable number, because it can be changed into a prime (64511051123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105071438 + ... + 105072051.

It is an arithmetic number, because the mean of its divisors is an integer number (16181048730).

Almost surely, 2^64514051123 is an apocalyptic number.

64514051123 is a deficient number, since it is larger than the sum of its proper divisors (210143797).

64514051123 is a wasteful number, since it uses less digits than its factorization.

64514051123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210143796.

The product of its (nonzero) digits is 14400, while the sum is 32.

Adding to 64514051123 its reverse (32115041546), we get a palindrome (96629092669).

The spelling of 64514051123 in words is "sixty-four billion, five hundred fourteen million, fifty-one thousand, one hundred twenty-three".