44861643901 has 2 divisors, whose sum is σ = 44861643902. Its totient is φ = 44861643900.

The previous prime is 44861643889. The next prime is 44861643913. The reversal of 44861643901 is 10934616844.

It is a balanced prime because it is at equal distance from previous prime (44861643889) and next prime (44861643913).

It can be written as a sum of positive squares in only one way, i.e., 43274816676 + 1586827225 = 208026^2 + 39835^2 .

It is a cyclic number.

It is not a de Polignac number, because 44861643901 - 2³¹ = 42714160253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44861643941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22430821950 + 22430821951.

It is an arithmetic number, because the mean of its divisors is an integer number (22430821951).

Almost surely, 2^44861643901 is an apocalyptic number.

It is an amenable number.

44861643901 is a deficient number, since it is larger than the sum of its proper divisors (1).

44861643901 is an equidigital number, since it uses as much as digits as its factorization.

44861643901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 497664, while the sum is 46.

The spelling of 44861643901 in words is "forty-four billion, eight hundred sixty-one million, six hundred forty-three thousand, nine hundred one".