44577731406137 has 2 divisors, whose sum is σ = 44577731406138. Its totient is φ = 44577731406136.

The previous prime is 44577731406079. The next prime is 44577731406139. The reversal of 44577731406137 is 73160413777544.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39486846228736 + 5090885177401 = 6283856^2 + 2256299^2 .

It is a cyclic number.

It is not a de Polignac number, because 44577731406137 - 2⁸ = 44577731405881 is a prime.

Together with 44577731406139, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (44577731406139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22288865703068 + 22288865703069.

It is an arithmetic number, because the mean of its divisors is an integer number (22288865703069).

Almost surely, 2^{44577731406137} is an apocalyptic number.

It is an amenable number.

44577731406137 is a deficient number, since it is larger than the sum of its proper divisors (1).

44577731406137 is an equidigital number, since it uses as much as digits as its factorization.

44577731406137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41489280, while the sum is 59.

The spelling of 44577731406137 in words is "forty-four trillion, five hundred seventy-seven billion, seven hundred thirty-one million, four hundred six thousand, one hundred thirty-seven".