91281486696229 has 2 divisors, whose sum is σ = 91281486696230. Its totient is φ = 91281486696228.

The previous prime is 91281486696217. The next prime is 91281486696241. The reversal of 91281486696229 is 92269668418219.

It is a balanced prime because it is at equal distance from previous prime (91281486696217) and next prime (91281486696241).

It can be written as a sum of positive squares in only one way, i.e., 50474303893729 + 40807182802500 = 7104527^2 + 6388050^2 .

It is a cyclic number.

It is not a de Polignac number, because 91281486696229 - 2¹³ = 91281486688037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91281486496229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45640743348114 + 45640743348115.

It is an arithmetic number, because the mean of its divisors is an integer number (45640743348115).

Almost surely, 2^{91281486696229} is an apocalyptic number.

It is an amenable number.

91281486696229 is a deficient number, since it is larger than the sum of its proper divisors (1).

91281486696229 is an equidigital number, since it uses as much as digits as its factorization.

91281486696229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 322486272, while the sum is 73.

The spelling of 91281486696229 in words is "ninety-one trillion, two hundred eighty-one billion, four hundred eighty-six million, six hundred ninety-six thousand, two hundred twenty-nine".