355079068781 has 2 divisors, whose sum is σ = 355079068782. Its totient is φ = 355079068780.

The previous prime is 355079068639. The next prime is 355079068811. The reversal of 355079068781 is 187860970553.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 336592587556 + 18486481225 = 580166^2 + 135965^2 .

It is a cyclic number.

It is not a de Polignac number, because 355079068781 - 2¹⁴ = 355079052397 is a prime.

It is a super-2 number, since 2×355079068781² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 355079068781.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (355079068381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177539534390 + 177539534391.

It is an arithmetic number, because the mean of its divisors is an integer number (177539534391).

Almost surely, 2^355079068781 is an apocalyptic number.

It is an amenable number.

355079068781 is a deficient number, since it is larger than the sum of its proper divisors (1).

355079068781 is an equidigital number, since it uses as much as digits as its factorization.

355079068781 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12700800, while the sum is 59.

The spelling of 355079068781 in words is "three hundred fifty-five billion, seventy-nine million, sixty-eight thousand, seven hundred eighty-one".