863818372311 has 8 divisors (see below), whose sum is σ = 1151787709824. Its totient is φ = 575863974840.

The previous prime is 863818372301. The next prime is 863818372331. The reversal of 863818372311 is 113273818368.

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

It is not a de Polignac number, because 863818372311 - 2⁵ = 863818372279 is a prime.

It is a super-2 number, since 2×863818372311² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (863818372301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3599395 + ... + 3831876.

It is an arithmetic number, because the mean of its divisors is an integer number (143973463728).

Almost surely, 2^863818372311 is an apocalyptic number.

863818372311 is a deficient number, since it is larger than the sum of its proper divisors (287969337513).

863818372311 is a wasteful number, since it uses less digits than its factorization.

863818372311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7470021.

The product of its digits is 1161216, while the sum is 51.

The spelling of 863818372311 in words is "eight hundred sixty-three billion, eight hundred eighteen million, three hundred seventy-two thousand, three hundred eleven".