191058400001 has 4 divisors (see below), whose sum is σ = 218352457152. Its totient is φ = 163764342852.

The previous prime is 191058399887. The next prime is 191058400003. The reversal of 191058400001 is 100004850191.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 191058400001 - 2¹⁰ = 191058398977 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (191058400003) 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, 13647028565 + ... + 13647028578.

It is an arithmetic number, because the mean of its divisors is an integer number (54588114288).

Almost surely, 2^191058400001 is an apocalyptic number.

It is an amenable number.

191058400001 is a deficient number, since it is larger than the sum of its proper divisors (27294057151).

191058400001 is an equidigital number, since it uses as much as digits as its factorization.

191058400001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27294057150.

The product of its (nonzero) digits is 1440, while the sum is 29.

The spelling of 191058400001 in words is "one hundred ninety-one billion, fifty-eight million, four hundred thousand, one".