2646477481 has 8 divisors (see below), whose sum is σ = 2677090304. Its totient is φ = 2615932800.

The previous prime is 2646477479. The next prime is 2646477487. The reversal of 2646477481 is 1847746462.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2646477481 - 2¹ = 2646477479 is a prime.

It is a super-2 number, since 2×2646477481² = 14007686114880210722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2646477487) 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 in 7 ways as a sum of consecutive naturals, for example, 63256 + ... + 96406.

It is an arithmetic number, because the mean of its divisors is an integer number (334636288).

Almost surely, 2^2646477481 is an apocalyptic number.

It is an amenable number.

2646477481 is a deficient number, since it is larger than the sum of its proper divisors (30612823).

2646477481 is an equidigital number, since it uses as much as digits as its factorization.

2646477481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34071.

The product of its digits is 1806336, while the sum is 49.

The square root of 2646477481 is about 51443.9255986555. The cubic root of 2646477481 is about 1383.2140797312.

The spelling of 2646477481 in words is "two billion, six hundred forty-six million, four hundred seventy-seven thousand, four hundred eighty-one".