3782881261823 has 4 divisors (see below), whose sum is σ = 3801890715600. Its totient is φ = 3763871808048.

The previous prime is 3782881261781. The next prime is 3782881261867. The reversal of 3782881261823 is 3281621882873.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3782881261823 - 2¹⁰ = 3782881260799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3782881291823) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9504726590 + ... + 9504726987.

It is an arithmetic number, because the mean of its divisors is an integer number (950472678900).

Almost surely, 2^{3782881261823} is an apocalyptic number.

3782881261823 is a deficient number, since it is larger than the sum of its proper divisors (19009453777).

3782881261823 is a wasteful number, since it uses less digits than its factorization.

3782881261823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19009453776.

The product of its digits is 12386304, while the sum is 59.

The spelling of 3782881261823 in words is "three trillion, seven hundred eighty-two billion, eight hundred eighty-one million, two hundred sixty-one thousand, eight hundred twenty-three".