2646533463 has 40 divisors (see below), whose sum is σ = 4358938608. Its totient is φ = 1423279872.

The previous prime is 2646533453. The next prime is 2646533467. The reversal of 2646533463 is 3643356462.

It is not a de Polignac number, because 2646533463 - 2⁹ = 2646532951 is a prime.

It is a super-3 number, since 3×2646533463³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2646533467) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 111645 + ... + 133257.

Almost surely, 2^2646533463 is an apocalyptic number.

2646533463 is a deficient number, since it is larger than the sum of its proper divisors (1712405145).

2646533463 is an equidigital number, since it uses as much as digits as its factorization.

2646533463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21661 (or 21640 counting only the distinct ones).

The product of its digits is 933120, while the sum is 42.

The square root of 2646533463 is about 51444.4697027776. The cubic root of 2646533463 is about 1383.2238328899.

The spelling of 2646533463 in words is "two billion, six hundred forty-six million, five hundred thirty-three thousand, four hundred sixty-three".