6374668081 has 2 divisors, whose sum is σ = 6374668082. Its totient is φ = 6374668080.

The previous prime is 6374668061. The next prime is 6374668117. The reversal of 6374668081 is 1808664736.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5474668081 + 900000000 = 73991^2 + 30000^2 .

It is a cyclic number.

It is not a de Polignac number, because 6374668081 - 2¹⁵ = 6374635313 is a prime.

It is a super-2 number, since 2×6374668081² = 81272786285840445122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6374668021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3187334040 + 3187334041.

It is an arithmetic number, because the mean of its divisors is an integer number (3187334041).

Almost surely, 2^6374668081 is an apocalyptic number.

It is an amenable number.

6374668081 is a deficient number, since it is larger than the sum of its proper divisors (1).

6374668081 is an equidigital number, since it uses as much as digits as its factorization.

6374668081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1161216, while the sum is 49.

The square root of 6374668081 is about 79841.5185288957. The cubic root of 6374668081 is about 1854.1827037269.

The spelling of 6374668081 in words is "six billion, three hundred seventy-four million, six hundred sixty-eight thousand, eighty-one".