2601951497 has 2 divisors, whose sum is σ = 2601951498. Its totient is φ = 2601951496.

The previous prime is 2601951491. The next prime is 2601951509. The reversal of 2601951497 is 7941591062.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2201111056 + 400840441 = 46916^2 + 20021^2 .

It is a cyclic number.

It is not a de Polignac number, because 2601951497 - 2¹⁶ = 2601885961 is a prime.

It is not a weakly prime, because it can be changed into another prime (2601951491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1300975748 + 1300975749.

It is an arithmetic number, because the mean of its divisors is an integer number (1300975749).

Almost surely, 2^2601951497 is an apocalyptic number.

It is an amenable number.

2601951497 is a deficient number, since it is larger than the sum of its proper divisors (1).

2601951497 is an equidigital number, since it uses as much as digits as its factorization.

2601951497 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 136080, while the sum is 44.

The square root of 2601951497 is about 51009.3275489885. The cubic root of 2601951497 is about 1375.4128121604.

The spelling of 2601951497 in words is "two billion, six hundred one million, nine hundred fifty-one thousand, four hundred ninety-seven".