64881023143411 has 4 divisors (see below), whose sum is σ = 65662722217512. Its totient is φ = 64099324069312.

The previous prime is 64881023143331. The next prime is 64881023143553. The reversal of 64881023143411 is 11434132018846.

64881023143411 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 64881023143411 - 2³³ = 64872433208819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64881023140411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 390849536926 + ... + 390849537091.

It is an arithmetic number, because the mean of its divisors is an integer number (16415680554378).

Almost surely, 2^{64881023143411} is an apocalyptic number.

64881023143411 is a deficient number, since it is larger than the sum of its proper divisors (781699074101).

64881023143411 is an equidigital number, since it uses as much as digits as its factorization.

64881023143411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 781699074100.

The product of its (nonzero) digits is 442368, while the sum is 46.

The spelling of 64881023143411 in words is "sixty-four trillion, eight hundred eighty-one billion, twenty-three million, one hundred forty-three thousand, four hundred eleven".