863126765381 has 8 divisors (see below), whose sum is σ = 864512083680. Its totient is φ = 861741642672.

The previous prime is 863126765363. The next prime is 863126765393. The reversal of 863126765381 is 183567621368.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 863126765381 - 2⁶ = 863126765317 is a prime.

It is a super-2 number, since 2×863126765381² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (863126765321) 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 7 ways as a sum of consecutive naturals, for example, 10644650 + ... + 10725428.

It is an arithmetic number, because the mean of its divisors is an integer number (108064010460).

Almost surely, 2^863126765381 is an apocalyptic number.

It is an amenable number.

863126765381 is a deficient number, since it is larger than the sum of its proper divisors (1385318299).

863126765381 is a wasteful number, since it uses less digits than its factorization.

863126765381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97795.

The product of its digits is 8709120, while the sum is 56.

The spelling of 863126765381 in words is "eight hundred sixty-three billion, one hundred twenty-six million, seven hundred sixty-five thousand, three hundred eighty-one".