91410410321 has 4 divisors (see below), whose sum is σ = 91416825444. Its totient is φ = 91403995200.

The previous prime is 91410410297. The next prime is 91410410381. The reversal of 91410410321 is 12301401419.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3699072400 + 87711337921 = 60820^2 + 296161^2 .

It is a cyclic number.

It is not a de Polignac number, because 91410410321 - 2²² = 91406216017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91410410381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3186140 + ... + 3214701.

It is an arithmetic number, because the mean of its divisors is an integer number (22854206361).

Almost surely, 2^91410410321 is an apocalyptic number.

It is an amenable number.

91410410321 is a deficient number, since it is larger than the sum of its proper divisors (6415123).

91410410321 is a wasteful number, since it uses less digits than its factorization.

91410410321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6415122.

The product of its (nonzero) digits is 864, while the sum is 26.

The spelling of 91410410321 in words is "ninety-one billion, four hundred ten million, four hundred ten thousand, three hundred twenty-one".