91910004641 has 8 divisors (see below), whose sum is σ = 113120005824. Its totient is φ = 72720003600.

The previous prime is 91910004631. The next prime is 91910004679. The reversal of 91910004641 is 14640001919.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-91910004641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (91910004631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 504999935 + ... + 505000116.

It is an arithmetic number, because the mean of its divisors is an integer number (14140000728).

Almost surely, 2^91910004641 is an apocalyptic number.

91910004641 is a gapful number since it is divisible by the number (91) formed by its first and last digit.

It is an amenable number.

91910004641 is a deficient number, since it is larger than the sum of its proper divisors (21210001183).

91910004641 is a wasteful number, since it uses less digits than its factorization.

91910004641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010000071.

The product of its (nonzero) digits is 7776, while the sum is 35.

The spelling of 91910004641 in words is "ninety-one billion, nine hundred ten million, four thousand, six hundred forty-one".