61444053373 has 2 divisors, whose sum is σ = 61444053374. Its totient is φ = 61444053372.

The previous prime is 61444053259. The next prime is 61444053401. The reversal of 61444053373 is 37335044416.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52814014969 + 8630038404 = 229813^2 + 92898^2 .

It is a cyclic number.

It is not a de Polignac number, because 61444053373 - 2³³ = 52854118781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61444053673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30722026686 + 30722026687.

It is an arithmetic number, because the mean of its divisors is an integer number (30722026687).

Almost surely, 2^61444053373 is an apocalyptic number.

It is an amenable number.

61444053373 is a deficient number, since it is larger than the sum of its proper divisors (1).

61444053373 is an equidigital number, since it uses as much as digits as its factorization.

61444053373 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 362880, while the sum is 40.

Adding to 61444053373 its reverse (37335044416), we get a palindrome (98779097789).

The spelling of 61444053373 in words is "sixty-one billion, four hundred forty-four million, fifty-three thousand, three hundred seventy-three".