91454550501 has 8 divisors (see below), whose sum is σ = 122202770560. Its totient is φ = 60838015392.

The previous prime is 91454550419. The next prime is 91454550503. The reversal of 91454550501 is 10505545419.

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

It is not a de Polignac number, because 91454550501 - 2⁷ = 91454550373 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 91454550501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91454550503) 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, 32919616 + ... + 32922393.

It is an arithmetic number, because the mean of its divisors is an integer number (15275346320).

Almost surely, 2^91454550501 is an apocalyptic number.

It is an amenable number.

91454550501 is a deficient number, since it is larger than the sum of its proper divisors (30748220059).

91454550501 is a wasteful number, since it uses less digits than its factorization.

91454550501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65842475.

The product of its (nonzero) digits is 90000, while the sum is 39.

The spelling of 91454550501 in words is "ninety-one billion, four hundred fifty-four million, five hundred fifty thousand, five hundred one".