36813207194 has 4 divisors (see below), whose sum is σ = 55219810794. Its totient is φ = 18406603596.

The previous prime is 36813207143. The next prime is 36813207227. The reversal of 36813207194 is 49170231863.

36813207194 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 49170231863 = 293 ⋅167816491.

It can be written as a sum of positive squares in only one way, i.e., 32998539025 + 3814668169 = 181655^2 + 61763^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9203301797 + ... + 9203301800.

Almost surely, 2^36813207194 is an apocalyptic number.

36813207194 is a deficient number, since it is larger than the sum of its proper divisors (18406603600).

36813207194 is a wasteful number, since it uses less digits than its factorization.

36813207194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18406603599.

The product of its (nonzero) digits is 217728, while the sum is 44.

The spelling of 36813207194 in words is "thirty-six billion, eight hundred thirteen million, two hundred seven thousand, one hundred ninety-four".