227970916369 has 9 divisors (see below), whose sum is σ = 265194545787. Its totient is φ = 195400777824.

The previous prime is 227970916309. The next prime is 227970916409. The reversal of 227970916369 is 963619079722.

The square root of 227970916369 is 477463.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 108199549969 + 119771366400 = 328937^2 + 346080^2 .

It is not a de Polignac number, because 227970916369 - 2⁹ = 227970915857 is a prime.

It is a super-2 number, since 2×227970916369² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (227970916309) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3308137 + ... + 3376345.

It is an arithmetic number, because the mean of its divisors is an integer number (29466060643).

Almost surely, 2^227970916369 is an apocalyptic number.

227970916369 is the 477463-rd square number.

227970916369 is the 238732-nd centered octagonal number.

It is an amenable number.

227970916369 is a deficient number, since it is larger than the sum of its proper divisors (37223629418).

227970916369 is an frugal number, since it uses more digits than its factorization.

227970916369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136432 (or 68216 counting only the distinct ones).

The product of its (nonzero) digits is 15431472, while the sum is 61.

The spelling of 227970916369 in words is "two hundred twenty-seven billion, nine hundred seventy million, nine hundred sixteen thousand, three hundred sixty-nine".