356838745181 has 2 divisors, whose sum is σ = 356838745182. Its totient is φ = 356838745180.

The previous prime is 356838745141. The next prime is 356838745187. The reversal of 356838745181 is 181547838653.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 296443225156 + 60395520025 = 544466^2 + 245755^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-356838745181 is a prime.

It is a super-2 number, since 2×356838745181² (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 356838745181.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (356838745187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 178419372590 + 178419372591.

It is an arithmetic number, because the mean of its divisors is an integer number (178419372591).

Almost surely, 2^356838745181 is an apocalyptic number.

It is an amenable number.

356838745181 is a deficient number, since it is larger than the sum of its proper divisors (1).

356838745181 is an equidigital number, since it uses as much as digits as its factorization.

356838745181 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19353600, while the sum is 59.

The spelling of 356838745181 in words is "three hundred fifty-six billion, eight hundred thirty-eight million, seven hundred forty-five thousand, one hundred eighty-one".