18209133051 has 8 divisors (see below), whose sum is σ = 25334446080. Its totient is φ = 11611621032.

The previous prime is 18209133049. The next prime is 18209133053. The reversal of 18209133051 is 15033190281.

It is an interprime number because it is at equal distance from previous prime (18209133049) and next prime (18209133053).

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

It is not a de Polignac number, because 18209133051 - 2¹ = 18209133049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18209133053) 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, 131950171 + ... + 131950308.

It is an arithmetic number, because the mean of its divisors is an integer number (3166805760).

Almost surely, 2^18209133051 is an apocalyptic number.

18209133051 is a deficient number, since it is larger than the sum of its proper divisors (7125313029).

18209133051 is a wasteful number, since it uses less digits than its factorization.

18209133051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263900505.

The product of its (nonzero) digits is 6480, while the sum is 33.

The spelling of 18209133051 in words is "eighteen billion, two hundred nine million, one hundred thirty-three thousand, fifty-one".