2639602043238 has 32 divisors (see below), whose sum is σ = 5370020841600. Its totient is φ = 864738659456.

The previous prime is 2639602043203. The next prime is 2639602043291. The reversal of 2639602043238 is 8323402069362.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 495070 + ... + 2350382.

It is an arithmetic number, because the mean of its divisors is an integer number (167813151300).

Almost surely, 2^{2639602043238} is an apocalyptic number.

2639602043238 is an abundant number, since it is smaller than the sum of its proper divisors (2730418798362).

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

2639602043238 is a wasteful number, since it uses less digits than its factorization.

2639602043238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1859396.

The product of its (nonzero) digits is 2239488, while the sum is 48.

The spelling of 2639602043238 in words is "two trillion, six hundred thirty-nine billion, six hundred two million, forty-three thousand, two hundred thirty-eight".