2615386481 has 2 divisors, whose sum is σ = 2615386482. Its totient is φ = 2615386480.

The previous prime is 2615386451. The next prime is 2615386483. The reversal of 2615386481 is 1846835162.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2208154081 + 407232400 = 46991^2 + 20180^2 .

It is a cyclic number.

It is not a de Polignac number, because 2615386481 - 2¹⁴ = 2615370097 is a prime.

It is a super-2 number, since 2×2615386481² = 13680492889995126722, which contains 22 as substring.

Together with 2615386483, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2615386483) 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, 1307693240 + 1307693241.

It is an arithmetic number, because the mean of its divisors is an integer number (1307693241).

Almost surely, 2^2615386481 is an apocalyptic number.

It is an amenable number.

2615386481 is a deficient number, since it is larger than the sum of its proper divisors (1).

2615386481 is an equidigital number, since it uses as much as digits as its factorization.

2615386481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 276480, while the sum is 44.

The square root of 2615386481 is about 51140.8494356517. The cubic root of 2615386481 is about 1377.7760301383.

The spelling of 2615386481 in words is "two billion, six hundred fifteen million, three hundred eighty-six thousand, four hundred eighty-one".