454203834191 has 4 divisors (see below), whose sum is σ = 469866035400. Its totient is φ = 438541632984.

The previous prime is 454203834187. The next prime is 454203834223. The reversal of 454203834191 is 191438302454.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 454203834191 - 2² = 454203834187 is a prime.

It is a super-2 number, since 2×454203834191² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (454203834181) 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, 7831100561 + ... + 7831100618.

It is an arithmetic number, because the mean of its divisors is an integer number (117466508850).

Almost surely, 2^454203834191 is an apocalyptic number.

454203834191 is a deficient number, since it is larger than the sum of its proper divisors (15662201209).

454203834191 is a wasteful number, since it uses less digits than its factorization.

454203834191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15662201208.

The product of its (nonzero) digits is 414720, while the sum is 44.

The spelling of 454203834191 in words is "four hundred fifty-four billion, two hundred three million, eight hundred thirty-four thousand, one hundred ninety-one".