612345205453 has 2 divisors, whose sum is σ = 612345205454. Its totient is φ = 612345205452.

The previous prime is 612345205441. The next prime is 612345205463. The reversal of 612345205453 is 354502543216.

612345205453 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 407967070729 + 204378134724 = 638723^2 + 452082^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-612345205453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (612345205463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306172602726 + 306172602727.

It is an arithmetic number, because the mean of its divisors is an integer number (306172602727).

Almost surely, 2^612345205453 is an apocalyptic number.

It is an amenable number.

612345205453 is a deficient number, since it is larger than the sum of its proper divisors (1).

612345205453 is an equidigital number, since it uses as much as digits as its factorization.

612345205453 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432000, while the sum is 40.

Adding to 612345205453 its reverse (354502543216), we get a palindrome (966847748669).

The spelling of 612345205453 in words is "six hundred twelve billion, three hundred forty-five million, two hundred five thousand, four hundred fifty-three".