91676100849 has 4 divisors (see below), whose sum is σ = 122234801136. Its totient is φ = 61117400564.

The previous prime is 91676100833. The next prime is 91676100851. The reversal of 91676100849 is 94800167619.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 91676100849 - 2⁴ = 91676100833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (91676100829) 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, 15279350139 + ... + 15279350144.

It is an arithmetic number, because the mean of its divisors is an integer number (30558700284).

Almost surely, 2^91676100849 is an apocalyptic number.

It is an amenable number.

91676100849 is a deficient number, since it is larger than the sum of its proper divisors (30558700287).

91676100849 is a wasteful number, since it uses less digits than its factorization.

91676100849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30558700286.

The product of its (nonzero) digits is 653184, while the sum is 51.

The spelling of 91676100849 in words is "ninety-one billion, six hundred seventy-six million, one hundred thousand, eight hundred forty-nine".