2461701581 has 2 divisors, whose sum is σ = 2461701582. Its totient is φ = 2461701580.

The previous prime is 2461701577. The next prime is 2461701587. The reversal of 2461701581 is 1851071642.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2356228681 + 105472900 = 48541^2 + 10270^2 .

It is a cyclic number.

It is not a de Polignac number, because 2461701581 - 2² = 2461701577 is a prime.

It is a super-2 number, since 2×2461701581² = 12119949347795799122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2461701587) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1230850790 + 1230850791.

It is an arithmetic number, because the mean of its divisors is an integer number (1230850791).

Almost surely, 2^2461701581 is an apocalyptic number.

It is an amenable number.

2461701581 is a deficient number, since it is larger than the sum of its proper divisors (1).

2461701581 is an equidigital number, since it uses as much as digits as its factorization.

2461701581 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13440, while the sum is 35.

The square root of 2461701581 is about 49615.5376973786. The cubic root of 2461701581 is about 1350.2425866758.

The spelling of 2461701581 in words is "two billion, four hundred sixty-one million, seven hundred one thousand, five hundred eighty-one".