2355436273381 has 2 divisors, whose sum is σ = 2355436273382. Its totient is φ = 2355436273380.

The previous prime is 2355436273373. The next prime is 2355436273387. The reversal of 2355436273381 is 1833726345532.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1885650776100 + 469785497281 = 1373190^2 + 685409^2 .

It is a cyclic number.

It is not a de Polignac number, because 2355436273381 - 2³ = 2355436273373 is a prime.

It is a super-2 number, since 2×2355436273381² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2355436273387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1177718136690 + 1177718136691.

It is an arithmetic number, because the mean of its divisors is an integer number (1177718136691).

Almost surely, 2^{2355436273381} is an apocalyptic number.

It is an amenable number.

2355436273381 is a deficient number, since it is larger than the sum of its proper divisors (1).

2355436273381 is an equidigital number, since it uses as much as digits as its factorization.

2355436273381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10886400, while the sum is 52.

The spelling of 2355436273381 in words is "two trillion, three hundred fifty-five billion, four hundred thirty-six million, two hundred seventy-three thousand, three hundred eighty-one".