961914380897 has 2 divisors, whose sum is σ = 961914380898. Its totient is φ = 961914380896.

The previous prime is 961914380879. The next prime is 961914380899. The reversal of 961914380897 is 798083419169.

Together with previous prime (961914380879) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 730177086016 + 231737294881 = 854504^2 + 481391^2 .

It is a cyclic number.

It is not a de Polignac number, because 961914380897 - 2¹⁴ = 961914364513 is a prime.

Together with 961914380899, 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 (961914380899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 480957190448 + 480957190449.

It is an arithmetic number, because the mean of its divisors is an integer number (480957190449).

Almost surely, 2^961914380897 is an apocalyptic number.

It is an amenable number.

961914380897 is a deficient number, since it is larger than the sum of its proper divisors (1).

961914380897 is an equidigital number, since it uses as much as digits as its factorization.

961914380897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23514624, while the sum is 65.

The spelling of 961914380897 in words is "nine hundred sixty-one billion, nine hundred fourteen million, three hundred eighty thousand, eight hundred ninety-seven".