23218211863 has 16 divisors (see below), whose sum is σ = 29158689024. Its totient is φ = 17960045760.

The previous prime is 23218211851. The next prime is 23218211911. The reversal of 23218211863 is 36811281232.

It is a cyclic number.

It is not a de Polignac number, because 23218211863 - 2¹⁷ = 23218080791 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 (23210211863) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1089945 + ... + 1111042.

It is an arithmetic number, because the mean of its divisors is an integer number (1822418064).

Almost surely, 2^23218211863 is an apocalyptic number.

23218211863 is a deficient number, since it is larger than the sum of its proper divisors (5940477161).

23218211863 is a wasteful number, since it uses less digits than its factorization.

23218211863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2201142.

The product of its digits is 27648, while the sum is 37.

The spelling of 23218211863 in words is "twenty-three billion, two hundred eighteen million, two hundred eleven thousand, eight hundred sixty-three".