61910540445041 has 2 divisors, whose sum is σ = 61910540445042. Its totient is φ = 61910540445040.

The previous prime is 61910540445037. The next prime is 61910540445043. The reversal of 61910540445041 is 14054404501916.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33194928342016 + 28715612103025 = 5761504^2 + 5358695^2 .

It is a cyclic number.

It is not a de Polignac number, because 61910540445041 - 2² = 61910540445037 is a prime.

Together with 61910540445043, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 61910540444983 and 61910540445001.

It is not a weakly prime, because it can be changed into another prime (61910540445043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30955270222520 + 30955270222521.

It is an arithmetic number, because the mean of its divisors is an integer number (30955270222521).

Almost surely, 2^{61910540445041} is an apocalyptic number.

It is an amenable number.

61910540445041 is a deficient number, since it is larger than the sum of its proper divisors (1).

61910540445041 is an equidigital number, since it uses as much as digits as its factorization.

61910540445041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 345600, while the sum is 44.

Adding to 61910540445041 its reverse (14054404501916), we get a palindrome (75964944946957).

The spelling of 61910540445041 in words is "sixty-one trillion, nine hundred ten billion, five hundred forty million, four hundred forty-five thousand, forty-one".