2643456450 has 24 divisors (see below), whose sum is σ = 6555772368. Its totient is φ = 704921680.

The previous prime is 2643456443. The next prime is 2643456457. The reversal of 2643456450 is 546543462.

It is an interprime number because it is at equal distance from previous prime (2643456443) and next prime (2643456457).

It is a super-3 number, since 3×2643456450³ (a number of 29 digits) contains 333 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2643456399 and 2643456408.

It is not an unprimeable number, because it can be changed into a prime (2643456457) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8811372 + ... + 8811671.

It is an arithmetic number, because the mean of its divisors is an integer number (273157182).

Almost surely, 2^2643456450 is an apocalyptic number.

2643456450 is an abundant number, since it is smaller than the sum of its proper divisors (3912315918).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2643456450 is a wasteful number, since it uses less digits than its factorization.

2643456450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17623058 (or 17623053 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 39.

The square root of 2643456450 is about 51414.5548458800. The cubic root of 2643456450 is about 1382.6875529672.

The spelling of 2643456450 in words is "two billion, six hundred forty-three million, four hundred fifty-six thousand, four hundred fifty".