44120945261 has 2 divisors, whose sum is σ = 44120945262. Its totient is φ = 44120945260.

The previous prime is 44120945251. The next prime is 44120945263. The reversal of 44120945261 is 16254902144.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43683508036 + 437437225 = 209006^2 + 20915^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44120945261 is a prime.

Together with 44120945263, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44120945263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22060472630 + 22060472631.

It is an arithmetic number, because the mean of its divisors is an integer number (22060472631).

Almost surely, 2^44120945261 is an apocalyptic number.

It is an amenable number.

44120945261 is a deficient number, since it is larger than the sum of its proper divisors (1).

44120945261 is an equidigital number, since it uses as much as digits as its factorization.

44120945261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69120, while the sum is 38.

The spelling of 44120945261 in words is "forty-four billion, one hundred twenty million, nine hundred forty-five thousand, two hundred sixty-one".