863448402143 has 16 divisors (see below), whose sum is σ = 929331577440. Its totient is φ = 799344930816.

The previous prime is 863448402139. The next prime is 863448402149. The reversal of 863448402143 is 341204844368.

It is not a de Polignac number, because 863448402143 - 2² = 863448402139 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 (863448402149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1337408 + ... + 1874981.

It is an arithmetic number, because the mean of its divisors is an integer number (58083223590).

Almost surely, 2^863448402143 is an apocalyptic number.

863448402143 is a deficient number, since it is larger than the sum of its proper divisors (65883175297).

863448402143 is a wasteful number, since it uses less digits than its factorization.

863448402143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3212666.

The product of its (nonzero) digits is 1769472, while the sum is 47.

The spelling of 863448402143 in words is "eight hundred sixty-three billion, four hundred forty-eight million, four hundred two thousand, one hundred forty-three".