2643523080 has 64 divisors (see below), whose sum is σ = 8651534400. Its totient is φ = 640853760.

The previous prime is 2643523073. The next prime is 2643523081. The reversal of 2643523080 is 803253462.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (2643523081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1000015 + ... + 1002654.

It is an arithmetic number, because the mean of its divisors is an integer number (135180225).

Almost surely, 2^2643523080 is an apocalyptic number.

2643523080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2643523080 is an abundant number, since it is smaller than the sum of its proper divisors (6008011320).

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

2643523080 is a wasteful number, since it uses less digits than its factorization.

2643523080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2002694 (or 2002690 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 33.

The square root of 2643523080 is about 51415.2028100639. The cubic root of 2643523080 is about 1382.6991700425.

The spelling of 2643523080 in words is "two billion, six hundred forty-three million, five hundred twenty-three thousand, eighty".