44198187871 has 2 divisors, whose sum is σ = 44198187872. Its totient is φ = 44198187870.

The previous prime is 44198187853. The next prime is 44198187937. The reversal of 44198187871 is 17878189144.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 44198187871 - 2⁷ = 44198187743 is a prime.

It is a super-2 number, since 2×44198187871² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44198187811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22099093935 + 22099093936.

It is an arithmetic number, because the mean of its divisors is an integer number (22099093936).

Almost surely, 2^44198187871 is an apocalyptic number.

44198187871 is a deficient number, since it is larger than the sum of its proper divisors (1).

44198187871 is an equidigital number, since it uses as much as digits as its factorization.

44198187871 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3612672, while the sum is 58.

The spelling of 44198187871 in words is "forty-four billion, one hundred ninety-eight million, one hundred eighty-seven thousand, eight hundred seventy-one".