2617156481 has 2 divisors, whose sum is σ = 2617156482. Its totient is φ = 2617156480.

The previous prime is 2617156459. The next prime is 2617156513. The reversal of 2617156481 is 1846517162.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2249130625 + 368025856 = 47425^2 + 19184^2 .

It is a cyclic number.

It is not a de Polignac number, because 2617156481 - 2³⁰ = 1543414657 is a prime.

It is a super-2 number, since 2×2617156481² = 13699016092080606722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2617156441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1308578240 + 1308578241.

It is an arithmetic number, because the mean of its divisors is an integer number (1308578241).

Almost surely, 2^2617156481 is an apocalyptic number.

It is an amenable number.

2617156481 is a deficient number, since it is larger than the sum of its proper divisors (1).

2617156481 is an equidigital number, since it uses as much as digits as its factorization.

2617156481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 80640, while the sum is 41.

The square root of 2617156481 is about 51158.1516573850. The cubic root of 2617156481 is about 1378.0867698912.

The spelling of 2617156481 in words is "two billion, six hundred seventeen million, one hundred fifty-six thousand, four hundred eighty-one".