44954918191 has 2 divisors, whose sum is σ = 44954918192. Its totient is φ = 44954918190.

The previous prime is 44954918161. The next prime is 44954918207. The reversal of 44954918191 is 19181945944.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 44954918191 - 2³¹ = 42807434543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44954918161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22477459095 + 22477459096.

It is an arithmetic number, because the mean of its divisors is an integer number (22477459096).

Almost surely, 2^44954918191 is an apocalyptic number.

44954918191 is a deficient number, since it is larger than the sum of its proper divisors (1).

44954918191 is an equidigital number, since it uses as much as digits as its factorization.

44954918191 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1866240, while the sum is 55.

The spelling of 44954918191 in words is "forty-four billion, nine hundred fifty-four million, nine hundred eighteen thousand, one hundred ninety-one".