64434250222453 has 4 divisors (see below), whose sum is σ = 64468688626368. Its totient is φ = 64399811818540.

The previous prime is 64434250222421. The next prime is 64434250222471. The reversal of 64434250222453 is 35422205243446.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 64434250222453 - 2⁵ = 64434250222421 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 (64434250222493) 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, 17219199151 + ... + 17219202892.

It is an arithmetic number, because the mean of its divisors is an integer number (16117172156592).

Almost surely, 2^{64434250222453} is an apocalyptic number.

It is an amenable number.

64434250222453 is a deficient number, since it is larger than the sum of its proper divisors (34438403915).

64434250222453 is a wasteful number, since it uses less digits than its factorization.

64434250222453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34438403914.

The product of its (nonzero) digits is 5529600, while the sum is 46.

Adding to 64434250222453 its reverse (35422205243446), we get a palindrome (99856455465899).

The spelling of 64434250222453 in words is "sixty-four trillion, four hundred thirty-four billion, two hundred fifty million, two hundred twenty-two thousand, four hundred fifty-three".