198051038711 has 4 divisors (see below), whose sum is σ = 198781854624. Its totient is φ = 197320222800.

The previous prime is 198051038681. The next prime is 198051038737. The reversal of 198051038711 is 117830150891.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 117830150891 = 19 ⋅6201586889.

It is a cyclic number.

It is not a de Polignac number, because 198051038711 - 2¹⁴ = 198051022327 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 (198051038741) 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, 365407550 + ... + 365408091.

It is an arithmetic number, because the mean of its divisors is an integer number (49695463656).

Almost surely, 2^198051038711 is an apocalyptic number.

198051038711 is a deficient number, since it is larger than the sum of its proper divisors (730815913).

198051038711 is an equidigital number, since it uses as much as digits as its factorization.

198051038711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 730815912.

The product of its (nonzero) digits is 60480, while the sum is 44.

The spelling of 198051038711 in words is "one hundred ninety-eight billion, fifty-one million, thirty-eight thousand, seven hundred eleven".