61444042624331 has 2 divisors, whose sum is σ = 61444042624332. Its totient is φ = 61444042624330.

The previous prime is 61444042624291. The next prime is 61444042624357. The reversal of 61444042624331 is 13342624044416.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61444042624331 is a prime.

It is a super-2 number, since 2×61444042624331² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (61444042624631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30722021312165 + 30722021312166.

It is an arithmetic number, because the mean of its divisors is an integer number (30722021312166).

Almost surely, 2^{61444042624331} is an apocalyptic number.

61444042624331 is a deficient number, since it is larger than the sum of its proper divisors (1).

61444042624331 is an equidigital number, since it uses as much as digits as its factorization.

61444042624331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1327104, while the sum is 44.

Adding to 61444042624331 its reverse (13342624044416), we get a palindrome (74786666668747).

The spelling of 61444042624331 in words is "sixty-one trillion, four hundred forty-four billion, forty-two million, six hundred twenty-four thousand, three hundred thirty-one".