2617801061 has 2 divisors, whose sum is σ = 2617801062. Its totient is φ = 2617801060.

The previous prime is 2617801037. The next prime is 2617801129. The reversal of 2617801061 is 1601087162.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1769884900 + 847916161 = 42070^2 + 29119^2 .

It is a cyclic number.

It is not a de Polignac number, because 2617801061 - 2¹⁰ = 2617800037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2617801561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1308900530 + 1308900531.

It is an arithmetic number, because the mean of its divisors is an integer number (1308900531).

Almost surely, 2^2617801061 is an apocalyptic number.

It is an amenable number.

2617801061 is a deficient number, since it is larger than the sum of its proper divisors (1).

2617801061 is an equidigital number, since it uses as much as digits as its factorization.

2617801061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 2617801061 is about 51164.4511453020. The cubic root of 2617801061 is about 1378.1998970276.

The spelling of 2617801061 in words is "two billion, six hundred seventeen million, eight hundred one thousand, sixty-one".