19410622961 has 2 divisors, whose sum is σ = 19410622962. Its totient is φ = 19410622960.

The previous prime is 19410622951. The next prime is 19410622963. The reversal of 19410622961 is 16922601491.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10230108736 + 9180514225 = 101144^2 + 95815^2 .

It is an emirp because it is prime and its reverse (16922601491) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 19410622961 - 2⁶ = 19410622897 is a prime.

Together with 19410622963, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (19410622963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9705311480 + 9705311481.

It is an arithmetic number, because the mean of its divisors is an integer number (9705311481).

Almost surely, 2^19410622961 is an apocalyptic number.

It is an amenable number.

19410622961 is a deficient number, since it is larger than the sum of its proper divisors (1).

19410622961 is an equidigital number, since it uses as much as digits as its factorization.

19410622961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 41.

The spelling of 19410622961 in words is "nineteen billion, four hundred ten million, six hundred twenty-two thousand, nine hundred sixty-one".