1355403496277 has 2 divisors, whose sum is σ = 1355403496278. Its totient is φ = 1355403496276.

The previous prime is 1355403496201. The next prime is 1355403496333. The reversal of 1355403496277 is 7726943045531.

It is a happy number.

It is an a-pointer prime, because the next prime (1355403496333) can be obtained adding 1355403496277 to its sum of digits (56).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1335305046916 + 20098449361 = 1155554^2 + 141769^2 .

It is a cyclic number.

It is not a de Polignac number, because 1355403496277 - 2²⁸ = 1355135060821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1355403496477) 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 as a sum of consecutive naturals, namely, 677701748138 + 677701748139.

It is an arithmetic number, because the mean of its divisors is an integer number (677701748139).

Almost surely, 2^{1355403496277} is an apocalyptic number.

It is an amenable number.

1355403496277 is a deficient number, since it is larger than the sum of its proper divisors (1).

1355403496277 is an equidigital number, since it uses as much as digits as its factorization.

1355403496277 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19051200, while the sum is 56.

The spelling of 1355403496277 in words is "one trillion, three hundred fifty-five billion, four hundred three million, four hundred ninety-six thousand, two hundred seventy-seven".