64303234253 has 4 divisors (see below), whose sum is σ = 64305682140. Its totient is φ = 64300786368.

The previous prime is 64303234243. The next prime is 64303234267. The reversal of 64303234253 is 35243230346.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 46114126564 + 18189107689 = 214742^2 + 134867^2 .

It is a cyclic number.

It is not a de Polignac number, because 64303234253 - 2¹⁸ = 64302972109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64303234243) 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, 1184108 + ... + 1237221.

It is an arithmetic number, because the mean of its divisors is an integer number (16076420535).

Almost surely, 2^64303234253 is an apocalyptic number.

It is an amenable number.

64303234253 is a deficient number, since it is larger than the sum of its proper divisors (2447887).

64303234253 is a wasteful number, since it uses less digits than its factorization.

64303234253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2447886.

The product of its (nonzero) digits is 155520, while the sum is 35.

Adding to 64303234253 its reverse (35243230346), we get a palindrome (99546464599).

The spelling of 64303234253 in words is "sixty-four billion, three hundred three million, two hundred thirty-four thousand, two hundred fifty-three".