18803294207 has 4 divisors (see below), whose sum is σ = 18946830936. Its totient is φ = 18659757480.

The previous prime is 18803294201. The next prime is 18803294231. The reversal of 18803294207 is 70249230881.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70249230881 = 230771 ⋅304411.

It is a cyclic number.

It is not a de Polignac number, because 18803294207 - 2¹² = 18803290111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18803294201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71768168 + ... + 71768429.

It is an arithmetic number, because the mean of its divisors is an integer number (4736707734).

Almost surely, 2^18803294207 is an apocalyptic number.

18803294207 is a deficient number, since it is larger than the sum of its proper divisors (143536729).

18803294207 is a wasteful number, since it uses less digits than its factorization.

18803294207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143536728.

The product of its (nonzero) digits is 193536, while the sum is 44.

The spelling of 18803294207 in words is "eighteen billion, eight hundred three million, two hundred ninety-four thousand, two hundred seven".