91642050863 has 8 divisors (see below), whose sum is σ = 100298795520. Its totient is φ = 83039581080.

The previous prime is 91642050833. The next prime is 91642050889. The reversal of 91642050863 is 36805024619.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 91642050863 - 2¹⁴ = 91642034479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91642050803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13565183 + ... + 13571936.

It is an arithmetic number, because the mean of its divisors is an integer number (12537349440).

Almost surely, 2^91642050863 is an apocalyptic number.

91642050863 is a deficient number, since it is larger than the sum of its proper divisors (8656744657).

91642050863 is a wasteful number, since it uses less digits than its factorization.

91642050863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27137437.

The product of its (nonzero) digits is 311040, while the sum is 44.

The spelling of 91642050863 in words is "ninety-one billion, six hundred forty-two million, fifty thousand, eight hundred sixty-three".