91865147401 has 8 divisors (see below), whose sum is σ = 93794581440. Its totient is φ = 89952134448.

The previous prime is 91865147293. The next prime is 91865147441. The reversal of 91865147401 is 10474156819.

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 91865147401 - 2⁷ = 91865147273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91865147441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4093966 + ... + 4116343.

It is an arithmetic number, because the mean of its divisors is an integer number (11724322680).

Almost surely, 2^91865147401 is an apocalyptic number.

It is an amenable number.

91865147401 is a deficient number, since it is larger than the sum of its proper divisors (1929434039).

91865147401 is a wasteful number, since it uses less digits than its factorization.

91865147401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8210543.

The product of its (nonzero) digits is 241920, while the sum is 46.

The spelling of 91865147401 in words is "ninety-one billion, eight hundred sixty-five million, one hundred forty-seven thousand, four hundred one".