91338106682 has 4 divisors (see below), whose sum is σ = 137007160026. Its totient is φ = 45669053340.

The previous prime is 91338106679. The next prime is 91338106721. The reversal of 91338106682 is 28660183319.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 28660183319 = 19 ⋅1508430701.

It can be written as a sum of positive squares in only one way, i.e., 76783855801 + 14554250881 = 277099^2 + 120641^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22834526669 + ... + 22834526672.

Almost surely, 2^91338106682 is an apocalyptic number.

91338106682 is a deficient number, since it is larger than the sum of its proper divisors (45669053344).

91338106682 is a wasteful number, since it uses less digits than its factorization.

91338106682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45669053343.

The product of its (nonzero) digits is 373248, while the sum is 47.

The spelling of 91338106682 in words is "ninety-one billion, three hundred thirty-eight million, one hundred six thousand, six hundred eighty-two".