2643754394203 has 32 divisors (see below), whose sum is σ = 2983629780992. Its totient is φ = 2325792268800.

The previous prime is 2643754394201. The next prime is 2643754394209. The reversal of 2643754394203 is 3024934573462.

It is not a de Polignac number, because 2643754394203 - 2¹ = 2643754394201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2643754394201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 121034563 + ... + 121056403.

It is an arithmetic number, because the mean of its divisors is an integer number (93238430656).

Almost surely, 2^{2643754394203} is an apocalyptic number.

2643754394203 is a deficient number, since it is larger than the sum of its proper divisors (339875386789).

2643754394203 is a wasteful number, since it uses less digits than its factorization.

2643754394203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26435.

The product of its (nonzero) digits is 13063680, while the sum is 52.

The spelling of 2643754394203 in words is "two trillion, six hundred forty-three billion, seven hundred fifty-four million, three hundred ninety-four thousand, two hundred three".