12603634256377 has 4 divisors (see below), whose sum is σ = 12603821913936. Its totient is φ = 12603446598820.

The previous prime is 12603634256363. The next prime is 12603634256383. The reversal of 12603634256377 is 77365243630621.

12603634256377 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 12603634256377 - 2²³ = 12603625867769 is a prime.

It is a super-2 number, since 2×12603634256377² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12603634256177) 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, 93727999 + ... + 93862372.

It is an arithmetic number, because the mean of its divisors is an integer number (3150955478484).

Almost surely, 2^{12603634256377} is an apocalyptic number.

It is an amenable number.

12603634256377 is a deficient number, since it is larger than the sum of its proper divisors (187657559).

12603634256377 is an equidigital number, since it uses as much as digits as its factorization.

12603634256377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187657558.

The product of its (nonzero) digits is 22861440, while the sum is 55.

Adding to 12603634256377 its reverse (77365243630621), we get a palindrome (89968877886998).

The spelling of 12603634256377 in words is "twelve trillion, six hundred three billion, six hundred thirty-four million, two hundred fifty-six thousand, three hundred seventy-seven".