91448670871 has 8 divisors (see below), whose sum is σ = 91551196800. Its totient is φ = 91346196480.

The previous prime is 91448670869. The next prime is 91448670883. The reversal of 91448670871 is 17807684419.

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 91448670871 - 2¹ = 91448670869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91448670811) 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, 4319191 + ... + 4340311.

It is an arithmetic number, because the mean of its divisors is an integer number (11443899600).

Almost surely, 2^91448670871 is an apocalyptic number.

91448670871 is a deficient number, since it is larger than the sum of its proper divisors (102525929).

91448670871 is a wasteful number, since it uses less digits than its factorization.

91448670871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25769.

The product of its (nonzero) digits is 2709504, while the sum is 55.

The spelling of 91448670871 in words is "ninety-one billion, four hundred forty-eight million, six hundred seventy thousand, eight hundred seventy-one".