44199286991 has 2 divisors, whose sum is σ = 44199286992. Its totient is φ = 44199286990.

The previous prime is 44199286987. The next prime is 44199287009. The reversal of 44199286991 is 19968299144.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 44199286991 - 2² = 44199286987 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44199286291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22099643495 + 22099643496.

It is an arithmetic number, because the mean of its divisors is an integer number (22099643496).

Almost surely, 2^44199286991 is an apocalyptic number.

44199286991 is a deficient number, since it is larger than the sum of its proper divisors (1).

44199286991 is an equidigital number, since it uses as much as digits as its factorization.

44199286991 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10077696, while the sum is 62.

The spelling of 44199286991 in words is "forty-four billion, one hundred ninety-nine million, two hundred eighty-six thousand, nine hundred ninety-one".