2643405552 has 60 divisors (see below), whose sum is σ = 7787233480. Its totient is φ = 834758784.

The previous prime is 2643405517. The next prime is 2643405563. The reversal of 2643405552 is 2555043462.

2643405552 is a `hidden beast` number, since 2 + 64 + 3 + 40 + 5 + 552 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 480343 + ... + 485814.

Almost surely, 2^2643405552 is an apocalyptic number.

It is an amenable number.

2643405552 is an abundant number, since it is smaller than the sum of its proper divisors (5143827928).

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

2643405552 is a wasteful number, since it uses less digits than its factorization.

2643405552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 966190 (or 966181 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 36.

The square root of 2643405552 is about 51414.0598669275. The cubic root of 2643405552 is about 1382.6786786665.

The spelling of 2643405552 in words is "two billion, six hundred forty-three million, four hundred five thousand, five hundred fifty-two".