6602374981 has 2 divisors, whose sum is σ = 6602374982. Its totient is φ = 6602374980.

The previous prime is 6602374967. The next prime is 6602375057. The reversal of 6602374981 is 1894732066.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5367906756 + 1234468225 = 73266^2 + 35135^2 .

It is a cyclic number.

It is not a de Polignac number, because 6602374981 - 2¹⁵ = 6602342213 is a prime.

It is a super-2 number, since 2×6602374981² = 87182710779469500722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6602374921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3301187490 + 3301187491.

It is an arithmetic number, because the mean of its divisors is an integer number (3301187491).

Almost surely, 2^6602374981 is an apocalyptic number.

It is an amenable number.

6602374981 is a deficient number, since it is larger than the sum of its proper divisors (1).

6602374981 is an equidigital number, since it uses as much as digits as its factorization.

6602374981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 435456, while the sum is 46.

The square root of 6602374981 is about 81254.9997292474. Note that the first 3 decimals coincide. The cubic root of 6602374981 is about 1876.0024251427.

The spelling of 6602374981 in words is "six billion, six hundred two million, three hundred seventy-four thousand, nine hundred eighty-one".