1064644231253 has 8 divisors (see below), whose sum is σ = 1071994937400. Its totient is φ = 1057296264640.

The previous prime is 1064644231249. The next prime is 1064644231279. The reversal of 1064644231253 is 3521324464601.

It can be written as a sum of positive squares in 4 ways, for example, as 290566277764 + 774077953489 = 539042^2 + 879817^2 .

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 1064644231253 - 2² = 1064644231249 is a prime.

It is a super-2 number, since 2×1064644231253² (a number of 25 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 1064644231253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1064644231753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98123 + ... + 1462503.

It is an arithmetic number, because the mean of its divisors is an integer number (133999367175).

Almost surely, 2^{1064644231253} is an apocalyptic number.

It is an amenable number.

1064644231253 is a deficient number, since it is larger than the sum of its proper divisors (7350706147).

1064644231253 is a wasteful number, since it uses less digits than its factorization.

1064644231253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1369767.

The product of its (nonzero) digits is 414720, while the sum is 41.

Adding to 1064644231253 its reverse (3521324464601), we get a palindrome (4585968695854).

The spelling of 1064644231253 in words is "one trillion, sixty-four billion, six hundred forty-four million, two hundred thirty-one thousand, two hundred fifty-three".