44145393659 has 2 divisors, whose sum is σ = 44145393660. Its totient is φ = 44145393658.

The previous prime is 44145393631. The next prime is 44145393683. The reversal of 44145393659 is 95639354144.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44145393659 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 44145393659.

It is not a weakly prime, because it can be changed into another prime (44145393619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22072696829 + 22072696830.

It is an arithmetic number, because the mean of its divisors is an integer number (22072696830).

Almost surely, 2^44145393659 is an apocalyptic number.

44145393659 is a deficient number, since it is larger than the sum of its proper divisors (1).

44145393659 is an equidigital number, since it uses as much as digits as its factorization.

44145393659 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6998400, while the sum is 53.

The spelling of 44145393659 in words is "forty-four billion, one hundred forty-five million, three hundred ninety-three thousand, six hundred fifty-nine".