1246775445353 has 4 divisors (see below), whose sum is σ = 1246779147348. Its totient is φ = 1246771743360.

The previous prime is 1246775445287. The next prime is 1246775445389. The reversal of 1246775445353 is 3535445776421.

It is a happy number.

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 698815746304 + 547959699049 = 835952^2 + 740243^2 .

It is a cyclic number.

It is not a de Polignac number, because 1246775445353 - 2¹⁸ = 1246775183209 is a prime.

It is a super-2 number, since 2×1246775445353² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1246775945353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1288928 + ... + 2038353.

It is an arithmetic number, because the mean of its divisors is an integer number (311694786837).

Almost surely, 2^{1246775445353} is an apocalyptic number.

It is an amenable number.

1246775445353 is a deficient number, since it is larger than the sum of its proper divisors (3701995).

1246775445353 is an equidigital number, since it uses as much as digits as its factorization.

1246775445353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3701994.

The product of its digits is 42336000, while the sum is 56.

The spelling of 1246775445353 in words is "one trillion, two hundred forty-six billion, seven hundred seventy-five million, four hundred forty-five thousand, three hundred fifty-three".