18950000011 has 8 divisors (see below), whose sum is σ = 20066517504. Its totient is φ = 17833683840.

The previous prime is 18949999979. The next prime is 18950000053. The reversal of 18950000011 is 11000005981.

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

It is a cyclic number.

It is not a de Polignac number, because 18950000011 - 2⁵ = 18949999979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18950003011) 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, 171421 + ... + 259393.

It is an arithmetic number, because the mean of its divisors is an integer number (2508314688).

Almost surely, 2^18950000011 is an apocalyptic number.

18950000011 is a deficient number, since it is larger than the sum of its proper divisors (1116517493).

18950000011 is a wasteful number, since it uses less digits than its factorization.

18950000011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100661.

The product of its (nonzero) digits is 360, while the sum is 25.

Adding to 18950000011 its reverse (11000005981), we get a palindrome (29950005992).

The spelling of 18950000011 in words is "eighteen billion, nine hundred fifty million, eleven", and thus it is an aban number.