96722671781 has 2 divisors, whose sum is σ = 96722671782. Its totient is φ = 96722671780.

The previous prime is 96722671741. The next prime is 96722671817. The reversal of 96722671781 is 18717622769.

Together with next prime (96722671817) 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., 60618871681 + 36103800100 = 246209^2 + 190010^2 .

It is a cyclic number.

It is not a de Polignac number, because 96722671781 - 2¹⁰ = 96722670757 is a prime.

It is a super-2 number, since 2×96722671781² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (96722671741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48361335890 + 48361335891.

It is an arithmetic number, because the mean of its divisors is an integer number (48361335891).

Almost surely, 2^96722671781 is an apocalyptic number.

It is an amenable number.

96722671781 is a deficient number, since it is larger than the sum of its proper divisors (1).

96722671781 is an equidigital number, since it uses as much as digits as its factorization.

96722671781 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3556224, while the sum is 56.

The spelling of 96722671781 in words is "ninety-six billion, seven hundred twenty-two million, six hundred seventy-one thousand, seven hundred eighty-one".