44668935517 has 2 divisors, whose sum is σ = 44668935518. Its totient is φ = 44668935516.

The previous prime is 44668935469. The next prime is 44668935523. The reversal of 44668935517 is 71553986644.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43326006201 + 1342929316 = 208149^2 + 36646^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44668935517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44668935557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22334467758 + 22334467759.

It is an arithmetic number, because the mean of its divisors is an integer number (22334467759).

Almost surely, 2^44668935517 is an apocalyptic number.

It is an amenable number.

44668935517 is a deficient number, since it is larger than the sum of its proper divisors (1).

44668935517 is an equidigital number, since it uses as much as digits as its factorization.

44668935517 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21772800, while the sum is 58.

The spelling of 44668935517 in words is "forty-four billion, six hundred sixty-eight million, nine hundred thirty-five thousand, five hundred seventeen".