8100493691 has 4 divisors (see below), whose sum is σ = 8211459432. Its totient is φ = 7989527952.

The previous prime is 8100493673. The next prime is 8100493721. The reversal of 8100493691 is 1963940018.

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

It is a cyclic number.

It is not a de Polignac number, because 8100493691 - 2¹⁸ = 8100231547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8100493631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55482761 + ... + 55482906.

It is an arithmetic number, because the mean of its divisors is an integer number (2052864858).

Almost surely, 2^8100493691 is an apocalyptic number.

8100493691 is a deficient number, since it is larger than the sum of its proper divisors (110965741).

8100493691 is a wasteful number, since it uses less digits than its factorization.

8100493691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110965740.

The product of its (nonzero) digits is 46656, while the sum is 41.

The square root of 8100493691 is about 90002.7426859871. The cubic root of 8100493691 is about 2008.3396510253.

The spelling of 8100493691 in words is "eight billion, one hundred million, four hundred ninety-three thousand, six hundred ninety-one".