863134431368 has 24 divisors (see below), whose sum is σ = 1778877264990. Its totient is φ = 392333832000.

The previous prime is 863134431361. The next prime is 863134431409.

863134431368 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in only one way, i.e., 845704622884 + 17429808484 = 919622^2 + 132022^2 .

It is a super-2 number, since 2×863134431368² (a number of 25 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (863134431361) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 445832933 + ... + 445834868.

Almost surely, 2^863134431368 is an apocalyptic number.

863134431368 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

863134431368 is an abundant number, since it is smaller than the sum of its proper divisors (915742833622).

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

863134431368 is a wasteful number, since it uses less digits than its factorization.

863134431368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 891667829 (or 891667814 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 50.

The spelling of 863134431368 in words is "eight hundred sixty-three billion, one hundred thirty-four million, four hundred thirty-one thousand, three hundred sixty-eight".