11863813273 has 24 divisors (see below), whose sum is σ = 13861153152. Its totient is φ = 10087574784.

The previous prime is 11863813217. The next prime is 11863813277. The reversal of 11863813273 is 37231836811.

It is not a de Polignac number, because 11863813273 - 2⁹ = 11863812761 is a prime.

It is a super-2 number, since 2×11863813273² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11863813277) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 142986 + ... + 210172.

It is an arithmetic number, because the mean of its divisors is an integer number (577548048).

Almost surely, 2^11863813273 is an apocalyptic number.

11863813273 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

11863813273 is a deficient number, since it is larger than the sum of its proper divisors (1997339879).

11863813273 is a wasteful number, since it uses less digits than its factorization.

11863813273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67281 (or 67264 counting only the distinct ones).

The product of its digits is 145152, while the sum is 43.

The spelling of 11863813273 in words is "eleven billion, eight hundred sixty-three million, eight hundred thirteen thousand, two hundred seventy-three".