2643204344242 has 96 divisors (see below), whose sum is σ = 5294633984640. Its totient is φ = 965958048000.

The previous prime is 2643204344219. The next prime is 2643204344251. The reversal of 2643204344242 is 2424434023462.

It is a junction number, because it is equal to n+sod(n) for n = 2643204344195 and 2643204344204.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2844238 + ... + 3657334.

It is an arithmetic number, because the mean of its divisors is an integer number (55152437340).

Almost surely, 2^{2643204344242} is an apocalyptic number.

2643204344242 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2643204344242 is an abundant number, since it is smaller than the sum of its proper divisors (2651429640398).

2643204344242 is a wasteful number, since it uses less digits than its factorization.

2643204344242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 813248 (or 813237 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 40.

The spelling of 2643204344242 in words is "two trillion, six hundred forty-three billion, two hundred four million, three hundred forty-four thousand, two hundred forty-two".