44402636101381 has 2 divisors, whose sum is σ = 44402636101382. Its totient is φ = 44402636101380.

The previous prime is 44402636101321. The next prime is 44402636101427. The reversal of 44402636101381 is 18310163620444.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43651061541025 + 751574560356 = 6606895^2 + 866934^2 .

It is a cyclic number.

It is not a de Polignac number, because 44402636101381 - 2³¹ = 44400488617733 is a prime.

It is a super-2 number, since 2×44402636101381² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44402636101321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22201318050690 + 22201318050691.

It is an arithmetic number, because the mean of its divisors is an integer number (22201318050691).

Almost surely, 2^{44402636101381} is an apocalyptic number.

It is an amenable number.

44402636101381 is a deficient number, since it is larger than the sum of its proper divisors (1).

44402636101381 is an equidigital number, since it uses as much as digits as its factorization.

44402636101381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 331776, while the sum is 43.

The spelling of 44402636101381 in words is "forty-four trillion, four hundred two billion, six hundred thirty-six million, one hundred one thousand, three hundred eighty-one".