11643465850 has 24 divisors (see below), whose sum is σ = 21660229728. Its totient is φ = 4656658800.

The previous prime is 11643465833. The next prime is 11643465857. The reversal of 11643465850 is 5856434611.

It is a junction number, because it is equal to n+sod(n) for n = 11643465797 and 11643465806.

It is not an unprimeable number, because it can be changed into a prime (11643465857) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 400507 + ... + 428593.

It is an arithmetic number, because the mean of its divisors is an integer number (902509572).

Almost surely, 2^11643465850 is an apocalyptic number.

11643465850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11643465850 is a deficient number, since it is larger than the sum of its proper divisors (10016763878).

11643465850 is a wasteful number, since it uses less digits than its factorization.

11643465850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36390 (or 36385 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 43.

The spelling of 11643465850 in words is "eleven billion, six hundred forty-three million, four hundred sixty-five thousand, eight hundred fifty".