18106767650 has 24 divisors (see below), whose sum is σ = 33745590144. Its totient is φ = 7228298000.

The previous prime is 18106767629. The next prime is 18106767661. The reversal of 18106767650 is 5676760181.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 18106767595 and 18106767604.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 334826 + ... + 385125.

It is an arithmetic number, because the mean of its divisors is an integer number (1406066256).

Almost surely, 2^18106767650 is an apocalyptic number.

18106767650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18106767650 is a deficient number, since it is larger than the sum of its proper divisors (15638822494).

18106767650 is a wasteful number, since it uses less digits than its factorization.

18106767650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720466 (or 720461 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 47.

The spelling of 18106767650 in words is "eighteen billion, one hundred six million, seven hundred sixty-seven thousand, six hundred fifty".