4270661281 has 2 divisors, whose sum is σ = 4270661282. Its totient is φ = 4270661280.

The previous prime is 4270661279. The next prime is 4270661287. The reversal of 4270661281 is 1821660724.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4122795681 + 147865600 = 64209^2 + 12160^2 .

It is a cyclic number.

It is not a de Polignac number, because 4270661281 - 2¹ = 4270661279 is a prime.

It is a super-2 number, since 2×4270661281² = 36477095554065121922, which contains 22 as substring.

Together with 4270661279, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 4270661281.

It is not a weakly prime, because it can be changed into another prime (4270661287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2135330640 + 2135330641.

It is an arithmetic number, because the mean of its divisors is an integer number (2135330641).

Almost surely, 2^4270661281 is an apocalyptic number.

It is an amenable number.

4270661281 is a deficient number, since it is larger than the sum of its proper divisors (1).

4270661281 is an equidigital number, since it uses as much as digits as its factorization.

4270661281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 4270661281 is about 65350.2967170005. The cubic root of 4270661281 is about 1622.4265420054.

The spelling of 4270661281 in words is "four billion, two hundred seventy million, six hundred sixty-one thousand, two hundred eighty-one".