44809815037993 has 2 divisors, whose sum is σ = 44809815037994. Its totient is φ = 44809815037992.

The previous prime is 44809815037973. The next prime is 44809815038063. The reversal of 44809815037993 is 39973051890844.

It is a happy number.

It is an a-pointer prime, because the next prime (44809815038063) can be obtained adding 44809815037993 to its sum of digits (70).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33548978453904 + 11260836584089 = 5792148^2 + 3355717^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44809815037993 is a prime.

It is not a weakly prime, because it can be changed into another prime (44809815037973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22404907518996 + 22404907518997.

It is an arithmetic number, because the mean of its divisors is an integer number (22404907518997).

Almost surely, 2^{44809815037993} is an apocalyptic number.

It is an amenable number.

44809815037993 is a deficient number, since it is larger than the sum of its proper divisors (1).

44809815037993 is an equidigital number, since it uses as much as digits as its factorization.

44809815037993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 235146240, while the sum is 70.

The spelling of 44809815037993 in words is "forty-four trillion, eight hundred nine billion, eight hundred fifteen million, thirty-seven thousand, nine hundred ninety-three".